21665700

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:227

約数の個数: 216

約数和(自身を含む): 82147520

約数和(自身を除く): 60481820

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 25, 28, 30, 35, 36, 38, 42, 45, 50, 57, 60, 63, 70, 75, 76, 84, 90, 95, 100, 105, 114, 126, 133, 140, 150, 171, 175, 180, 181, 190, 210, 225, 228, 252, 266, 285, 300, 315, 342, 350, 362, 380, 399, 420, 450, 475, 525, 532, 543, 570, 630, 665, 684, 700, 724, 798, 855, 900, 905, 950, 1050, 1086, 1140, 1197, 1260, 1267, 1330, 1425, 1575, 1596, 1629, 1710, 1810, 1900, 1995, 2100, 2172, 2394, 2534, 2660, 2715, 2850, 3150, 3258, 3325, 3420, 3439, 3620, 3801, 3990, 4275, 4525, 4788, 5068, 5430, 5700, 5985, 6300, 6335, 6516, 6650, 6878, 7602, 7980, 8145, 8550, 9050, 9975, 10317, 10860, 11403, 11970, 12670, 13300, 13575, 13756, 15204, 16290, 17100, 17195, 18100, 19005, 19950, 20634, 22806, 23940, 24073, 25340, 27150, 29925, 30951, 31675, 32580, 34390, 38010, 39900, 40725, 41268, 45612, 48146, 51585, 54300, 57015, 59850, 61902, 63350, 68780, 72219, 76020, 81450, 85975, 95025, 96292, 103170, 114030, 119700, 120365, 123804, 126700, 144438, 154755, 162900, 171950, 190050, 206340, 216657, 228060, 240730, 257925, 285075, 288876, 309510, 343900, 361095, 380100, 433314, 481460, 515850, 570150, 601825, 619020, 722190, 773775, 866628, 1031700, 1083285, 1140300, 1203650, 1444380, 1547550, 1805475, 2166570, 2407300, 3095100, 3610950, 4333140, 5416425, 7221900, 10832850, 21665700]

約数ペア:

[(1, 21665700), (2, 10832850), (3, 7221900), (4, 5416425), (5, 4333140), (6, 3610950), (7, 3095100), (9, 2407300), (10, 2166570), (12, 1805475), (14, 1547550), (15, 1444380), (18, 1203650), (19, 1140300), (20, 1083285), (21, 1031700), (25, 866628), (28, 773775), (30, 722190), (35, 619020), (36, 601825), (38, 570150), (42, 515850), (45, 481460), (50, 433314), (57, 380100), (60, 361095), (63, 343900), (70, 309510), (75, 288876), (76, 285075), (84, 257925), (90, 240730), (95, 228060), (100, 216657), (105, 206340), (114, 190050), (126, 171950), (133, 162900), (140, 154755), (150, 144438), (171, 126700), (175, 123804), (180, 120365), (181, 119700), (190, 114030), (210, 103170), (225, 96292), (228, 95025), (252, 85975), (266, 81450), (285, 76020), (300, 72219), (315, 68780), (342, 63350), (350, 61902), (362, 59850), (380, 57015), (399, 54300), (420, 51585), (450, 48146), (475, 45612), (525, 41268), (532, 40725), (543, 39900), (570, 38010), (630, 34390), (665, 32580), (684, 31675), (700, 30951), (724, 29925), (798, 27150), (855, 25340), (900, 24073), (905, 23940), (950, 22806), (1050, 20634), (1086, 19950), (1140, 19005), (1197, 18100), (1260, 17195), (1267, 17100), (1330, 16290), (1425, 15204), (1575, 13756), (1596, 13575), (1629, 13300), (1710, 12670), (1810, 11970), (1900, 11403), (1995, 10860), (2100, 10317), (2172, 9975), (2394, 9050), (2534, 8550), (2660, 8145), (2715, 7980), (2850, 7602), (3150, 6878), (3258, 6650), (3325, 6516), (3420, 6335), (3439, 6300), (3620, 5985), (3801, 5700), (3990, 5430), (4275, 5068), (4525, 4788)]