21063900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1$

素因数の和:532

約数の個数: 144

約数和(自身を含む): 71745408

約数和(自身を除く): 50681508

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 25, 26, 30, 33, 39, 44, 50, 52, 55, 60, 65, 66, 75, 78, 100, 110, 130, 132, 143, 150, 156, 165, 195, 220, 260, 275, 286, 300, 325, 330, 390, 429, 491, 550, 572, 650, 660, 715, 780, 825, 858, 975, 982, 1100, 1300, 1430, 1473, 1650, 1716, 1950, 1964, 2145, 2455, 2860, 2946, 3300, 3575, 3900, 4290, 4910, 5401, 5892, 6383, 7150, 7365, 8580, 9820, 10725, 10802, 12275, 12766, 14300, 14730, 16203, 19149, 21450, 21604, 24550, 25532, 27005, 29460, 31915, 32406, 36825, 38298, 42900, 49100, 54010, 63830, 64812, 70213, 73650, 76596, 81015, 95745, 108020, 127660, 135025, 140426, 147300, 159575, 162030, 191490, 210639, 270050, 280852, 319150, 324060, 351065, 382980, 405075, 421278, 478725, 540100, 638300, 702130, 810150, 842556, 957450, 1053195, 1404260, 1620300, 1755325, 1914900, 2106390, 3510650, 4212780, 5265975, 7021300, 10531950, 21063900]

約数ペア:

[(1, 21063900), (2, 10531950), (3, 7021300), (4, 5265975), (5, 4212780), (6, 3510650), (10, 2106390), (11, 1914900), (12, 1755325), (13, 1620300), (15, 1404260), (20, 1053195), (22, 957450), (25, 842556), (26, 810150), (30, 702130), (33, 638300), (39, 540100), (44, 478725), (50, 421278), (52, 405075), (55, 382980), (60, 351065), (65, 324060), (66, 319150), (75, 280852), (78, 270050), (100, 210639), (110, 191490), (130, 162030), (132, 159575), (143, 147300), (150, 140426), (156, 135025), (165, 127660), (195, 108020), (220, 95745), (260, 81015), (275, 76596), (286, 73650), (300, 70213), (325, 64812), (330, 63830), (390, 54010), (429, 49100), (491, 42900), (550, 38298), (572, 36825), (650, 32406), (660, 31915), (715, 29460), (780, 27005), (825, 25532), (858, 24550), (975, 21604), (982, 21450), (1100, 19149), (1300, 16203), (1430, 14730), (1473, 14300), (1650, 12766), (1716, 12275), (1950, 10802), (1964, 10725), (2145, 9820), (2455, 8580), (2860, 7365), (2946, 7150), (3300, 6383), (3575, 5892), (3900, 5401), (4290, 4910)]