21348976

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1201}}^1$

素因数の和:1321

約数の個数: 40

約数和(自身を含む): 45608688

約数和(自身を除く): 24259712

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 101, 176, 202, 404, 808, 1111, 1201, 1616, 2222, 2402, 4444, 4804, 8888, 9608, 13211, 17776, 19216, 26422, 52844, 105688, 121301, 211376, 242602, 485204, 970408, 1334311, 1940816, 2668622, 5337244, 10674488, 21348976]

約数ペア:

[(1, 21348976), (2, 10674488), (4, 5337244), (8, 2668622), (11, 1940816), (16, 1334311), (22, 970408), (44, 485204), (88, 242602), (101, 211376), (176, 121301), (202, 105688), (404, 52844), (808, 26422), (1111, 19216), (1201, 17776), (1616, 13211), (2222, 9608), (2402, 8888), (4444, 4804)]