21591810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:224

約数の個数: 96

約数和(自身を含む): 59304960

約数和(自身を除く): 37713150

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 71, 90, 93, 109, 142, 155, 186, 213, 218, 279, 310, 327, 355, 426, 465, 545, 558, 639, 654, 710, 930, 981, 1065, 1090, 1278, 1395, 1635, 1962, 2130, 2201, 2790, 3195, 3270, 3379, 4402, 4905, 6390, 6603, 6758, 7739, 9810, 10137, 11005, 13206, 15478, 16895, 19809, 20274, 22010, 23217, 30411, 33015, 33790, 38695, 39618, 46434, 50685, 60822, 66030, 69651, 77390, 99045, 101370, 116085, 139302, 152055, 198090, 232170, 239909, 304110, 348255, 479818, 696510, 719727, 1199545, 1439454, 2159181, 2399090, 3598635, 4318362, 7197270, 10795905, 21591810]

約数ペア:

[(1, 21591810), (2, 10795905), (3, 7197270), (5, 4318362), (6, 3598635), (9, 2399090), (10, 2159181), (15, 1439454), (18, 1199545), (30, 719727), (31, 696510), (45, 479818), (62, 348255), (71, 304110), (90, 239909), (93, 232170), (109, 198090), (142, 152055), (155, 139302), (186, 116085), (213, 101370), (218, 99045), (279, 77390), (310, 69651), (327, 66030), (355, 60822), (426, 50685), (465, 46434), (545, 39618), (558, 38695), (639, 33790), (654, 33015), (710, 30411), (930, 23217), (981, 22010), (1065, 20274), (1090, 19809), (1278, 16895), (1395, 15478), (1635, 13206), (1962, 11005), (2130, 10137), (2201, 9810), (2790, 7739), (3195, 6758), (3270, 6603), (3379, 6390), (4402, 4905)]