21921900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1$

素因数の和:121

約数の個数: 288

約数和(自身を含む): 86327808

約数和(自身を除く): 64405908

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 15, 20, 21, 22, 25, 26, 28, 30, 33, 35, 39, 42, 44, 50, 52, 55, 60, 65, 66, 70, 73, 75, 77, 78, 84, 91, 100, 105, 110, 130, 132, 140, 143, 146, 150, 154, 156, 165, 175, 182, 195, 210, 219, 220, 231, 260, 273, 275, 286, 292, 300, 308, 325, 330, 350, 364, 365, 385, 390, 420, 429, 438, 455, 462, 511, 525, 546, 550, 572, 650, 660, 700, 715, 730, 770, 780, 803, 825, 858, 876, 910, 924, 949, 975, 1001, 1022, 1050, 1092, 1095, 1100, 1155, 1300, 1365, 1430, 1460, 1533, 1540, 1606, 1650, 1716, 1820, 1825, 1898, 1925, 1950, 2002, 2044, 2100, 2145, 2190, 2275, 2310, 2409, 2555, 2730, 2847, 2860, 3003, 3066, 3212, 3300, 3575, 3650, 3796, 3850, 3900, 4004, 4015, 4290, 4380, 4550, 4620, 4745, 4818, 5005, 5110, 5460, 5475, 5621, 5694, 5775, 6006, 6132, 6643, 6825, 7150, 7300, 7665, 7700, 8030, 8580, 9100, 9490, 9636, 10010, 10220, 10439, 10725, 10950, 11242, 11388, 11550, 12012, 12045, 12775, 13286, 13650, 14235, 14300, 15015, 15330, 16060, 16863, 18980, 19929, 20020, 20075, 20878, 21450, 21900, 22484, 23100, 23725, 24090, 25025, 25550, 26572, 27300, 28105, 28470, 30030, 30660, 31317, 33215, 33726, 38325, 39858, 40150, 41756, 42900, 47450, 48180, 50050, 51100, 52195, 56210, 56940, 60060, 60225, 62634, 66430, 67452, 71175, 73073, 75075, 76650, 79716, 80300, 84315, 94900, 99645, 100100, 104390, 112420, 120450, 125268, 132860, 140525, 142350, 146146, 150150, 153300, 156585, 166075, 168630, 199290, 208780, 219219, 240900, 260975, 281050, 284700, 292292, 300300, 313170, 332150, 337260, 365365, 398580, 421575, 438438, 498225, 521950, 562100, 626340, 664300, 730730, 782925, 843150, 876876, 996450, 1043900, 1096095, 1461460, 1565850, 1686300, 1826825, 1992900, 2192190, 3131700, 3653650, 4384380, 5480475, 7307300, 10960950, 21921900]

約数ペア:

[(1, 21921900), (2, 10960950), (3, 7307300), (4, 5480475), (5, 4384380), (6, 3653650), (7, 3131700), (10, 2192190), (11, 1992900), (12, 1826825), (13, 1686300), (14, 1565850), (15, 1461460), (20, 1096095), (21, 1043900), (22, 996450), (25, 876876), (26, 843150), (28, 782925), (30, 730730), (33, 664300), (35, 626340), (39, 562100), (42, 521950), (44, 498225), (50, 438438), (52, 421575), (55, 398580), (60, 365365), (65, 337260), (66, 332150), (70, 313170), (73, 300300), (75, 292292), (77, 284700), (78, 281050), (84, 260975), (91, 240900), (100, 219219), (105, 208780), (110, 199290), (130, 168630), (132, 166075), (140, 156585), (143, 153300), (146, 150150), (150, 146146), (154, 142350), (156, 140525), (165, 132860), (175, 125268), (182, 120450), (195, 112420), (210, 104390), (219, 100100), (220, 99645), (231, 94900), (260, 84315), (273, 80300), (275, 79716), (286, 76650), (292, 75075), (300, 73073), (308, 71175), (325, 67452), (330, 66430), (350, 62634), (364, 60225), (365, 60060), (385, 56940), (390, 56210), (420, 52195), (429, 51100), (438, 50050), (455, 48180), (462, 47450), (511, 42900), (525, 41756), (546, 40150), (550, 39858), (572, 38325), (650, 33726), (660, 33215), (700, 31317), (715, 30660), (730, 30030), (770, 28470), (780, 28105), (803, 27300), (825, 26572), (858, 25550), (876, 25025), (910, 24090), (924, 23725), (949, 23100), (975, 22484), (1001, 21900), (1022, 21450), (1050, 20878), (1092, 20075), (1095, 20020), (1100, 19929), (1155, 18980), (1300, 16863), (1365, 16060), (1430, 15330), (1460, 15015), (1533, 14300), (1540, 14235), (1606, 13650), (1650, 13286), (1716, 12775), (1820, 12045), (1825, 12012), (1898, 11550), (1925, 11388), (1950, 11242), (2002, 10950), (2044, 10725), (2100, 10439), (2145, 10220), (2190, 10010), (2275, 9636), (2310, 9490), (2409, 9100), (2555, 8580), (2730, 8030), (2847, 7700), (2860, 7665), (3003, 7300), (3066, 7150), (3212, 6825), (3300, 6643), (3575, 6132), (3650, 6006), (3796, 5775), (3850, 5694), (3900, 5621), (4004, 5475), (4015, 5460), (4290, 5110), (4380, 5005), (4550, 4818), (4620, 4745)]