21585420

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{563}}^1$

素因数の和:652

約数の個数: 96

約数和(自身を含む): 68221440

約数和(自身を除く): 46636020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 71, 90, 108, 135, 142, 180, 213, 270, 284, 355, 426, 540, 563, 639, 710, 852, 1065, 1126, 1278, 1420, 1689, 1917, 2130, 2252, 2556, 2815, 3195, 3378, 3834, 4260, 5067, 5630, 6390, 6756, 7668, 8445, 9585, 10134, 11260, 12780, 15201, 16890, 19170, 20268, 25335, 30402, 33780, 38340, 39973, 50670, 60804, 76005, 79946, 101340, 119919, 152010, 159892, 199865, 239838, 304020, 359757, 399730, 479676, 599595, 719514, 799460, 1079271, 1199190, 1439028, 1798785, 2158542, 2398380, 3597570, 4317084, 5396355, 7195140, 10792710, 21585420]

約数ペア:

[(1, 21585420), (2, 10792710), (3, 7195140), (4, 5396355), (5, 4317084), (6, 3597570), (9, 2398380), (10, 2158542), (12, 1798785), (15, 1439028), (18, 1199190), (20, 1079271), (27, 799460), (30, 719514), (36, 599595), (45, 479676), (54, 399730), (60, 359757), (71, 304020), (90, 239838), (108, 199865), (135, 159892), (142, 152010), (180, 119919), (213, 101340), (270, 79946), (284, 76005), (355, 60804), (426, 50670), (540, 39973), (563, 38340), (639, 33780), (710, 30402), (852, 25335), (1065, 20268), (1126, 19170), (1278, 16890), (1420, 15201), (1689, 12780), (1917, 11260), (2130, 10134), (2252, 9585), (2556, 8445), (2815, 7668), (3195, 6756), (3378, 6390), (3834, 5630), (4260, 5067)]