21357776

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{121351}}^1$

素因数の和:121370

約数の個数: 20

約数和(自身を含む): 45142944

約数和(自身を除く): 23785168

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 121351, 242702, 485404, 970808, 1334861, 1941616, 2669722, 5339444, 10678888, 21357776]

約数ペア:

[(1, 21357776), (2, 10678888), (4, 5339444), (8, 2669722), (11, 1941616), (16, 1334861), (22, 970808), (44, 485404), (88, 242702), (176, 121351)]