20917896

素因数分解:

$2^3\times 3^1\times {\mathrm{409}}^1\times {\mathrm{2131}}^1$

素因数の和:2549

約数の個数: 32

約数和(自身を含む): 52447200

約数和(自身を除く): 31529304

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 409, 818, 1227, 1636, 2131, 2454, 3272, 4262, 4908, 6393, 8524, 9816, 12786, 17048, 25572, 51144, 871579, 1743158, 2614737, 3486316, 5229474, 6972632, 10458948, 20917896]

約数ペア:

[(1, 20917896), (2, 10458948), (3, 6972632), (4, 5229474), (6, 3486316), (8, 2614737), (12, 1743158), (24, 871579), (409, 51144), (818, 25572), (1227, 17048), (1636, 12786), (2131, 9816), (2454, 8524), (3272, 6393), (4262, 4908)]