21582160

素因数分解:

$2^4\times 5^1\times {\mathrm{349}}^1\times {\mathrm{773}}^1$

素因数の和:1135

約数の個数: 40

約数和(自身を含む): 50387400

約数和(自身を除く): 28805240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 349, 698, 773, 1396, 1546, 1745, 2792, 3092, 3490, 3865, 5584, 6184, 6980, 7730, 12368, 13960, 15460, 27920, 30920, 61840, 269777, 539554, 1079108, 1348885, 2158216, 2697770, 4316432, 5395540, 10791080, 21582160]

約数ペア:

[(1, 21582160), (2, 10791080), (4, 5395540), (5, 4316432), (8, 2697770), (10, 2158216), (16, 1348885), (20, 1079108), (40, 539554), (80, 269777), (349, 61840), (698, 30920), (773, 27920), (1396, 15460), (1546, 13960), (1745, 12368), (2792, 7730), (3092, 6980), (3490, 6184), (3865, 5584)]