21385140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{863}}^1$

素因数の和:941

約数の個数: 96

約数和(自身を含む): 69672960

約数和(自身を除く): 48287820

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 59, 60, 70, 84, 105, 118, 140, 177, 210, 236, 295, 354, 413, 420, 590, 708, 826, 863, 885, 1180, 1239, 1652, 1726, 1770, 2065, 2478, 2589, 3452, 3540, 4130, 4315, 4956, 5178, 6041, 6195, 8260, 8630, 10356, 12082, 12390, 12945, 17260, 18123, 24164, 24780, 25890, 30205, 36246, 50917, 51780, 60410, 72492, 90615, 101834, 120820, 152751, 181230, 203668, 254585, 305502, 356419, 362460, 509170, 611004, 712838, 763755, 1018340, 1069257, 1425676, 1527510, 1782095, 2138514, 3055020, 3564190, 4277028, 5346285, 7128380, 10692570, 21385140]

約数ペア:

[(1, 21385140), (2, 10692570), (3, 7128380), (4, 5346285), (5, 4277028), (6, 3564190), (7, 3055020), (10, 2138514), (12, 1782095), (14, 1527510), (15, 1425676), (20, 1069257), (21, 1018340), (28, 763755), (30, 712838), (35, 611004), (42, 509170), (59, 362460), (60, 356419), (70, 305502), (84, 254585), (105, 203668), (118, 181230), (140, 152751), (177, 120820), (210, 101834), (236, 90615), (295, 72492), (354, 60410), (413, 51780), (420, 50917), (590, 36246), (708, 30205), (826, 25890), (863, 24780), (885, 24164), (1180, 18123), (1239, 17260), (1652, 12945), (1726, 12390), (1770, 12082), (2065, 10356), (2478, 8630), (2589, 8260), (3452, 6195), (3540, 6041), (4130, 5178), (4315, 4956)]