21004630810

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{701}}^1\times {\mathrm{49121}}^1$

素因数の和:49890

約数の個数: 32

約数和(自身を含む): 38483746704

約数和(自身を除く): 17479115894

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 701, 1402, 3505, 7010, 42761, 49121, 85522, 98242, 213805, 245605, 427610, 491210, 2996381, 5992762, 14981905, 29963810, 34433821, 68867642, 172169105, 344338210, 2100463081, 4200926162, 10502315405, 21004630810]

約数ペア:

[(1, 21004630810), (2, 10502315405), (5, 4200926162), (10, 2100463081), (61, 344338210), (122, 172169105), (305, 68867642), (610, 34433821), (701, 29963810), (1402, 14981905), (3505, 5992762), (7010, 2996381), (42761, 491210), (49121, 427610), (85522, 245605), (98242, 213805)]