21975420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{541}}^1\times {\mathrm{677}}^1$

素因数の和:1230

約数の個数: 48

約数和(自身を含む): 61735968

約数和(自身を除く): 39760548

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 541, 677, 1082, 1354, 1623, 2031, 2164, 2705, 2708, 3246, 3385, 4062, 5410, 6492, 6770, 8115, 8124, 10155, 10820, 13540, 16230, 20310, 32460, 40620, 366257, 732514, 1098771, 1465028, 1831285, 2197542, 3662570, 4395084, 5493855, 7325140, 10987710, 21975420]

約数ペア:

[(1, 21975420), (2, 10987710), (3, 7325140), (4, 5493855), (5, 4395084), (6, 3662570), (10, 2197542), (12, 1831285), (15, 1465028), (20, 1098771), (30, 732514), (60, 366257), (541, 40620), (677, 32460), (1082, 20310), (1354, 16230), (1623, 13540), (2031, 10820), (2164, 10155), (2705, 8124), (2708, 8115), (3246, 6770), (3385, 6492), (4062, 5410)]