20481770

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{571}}^1$

素因数の和:806

約数の個数: 32

約数和(自身を含む): 39289536

約数和(自身を除く): 18807766

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 211, 422, 571, 1055, 1142, 2110, 2855, 3587, 5710, 7174, 9707, 17935, 19414, 35870, 48535, 97070, 120481, 240962, 602405, 1204810, 2048177, 4096354, 10240885, 20481770]

約数ペア:

[(1, 20481770), (2, 10240885), (5, 4096354), (10, 2048177), (17, 1204810), (34, 602405), (85, 240962), (170, 120481), (211, 97070), (422, 48535), (571, 35870), (1055, 19414), (1142, 17935), (2110, 9707), (2855, 7174), (3587, 5710)]