13256481

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{523}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 21731328

約数和(自身を除く): 8474847

約数列:

[1, 3, 7, 17, 21, 51, 71, 119, 213, 357, 497, 523, 1207, 1491, 1569, 3621, 3661, 8449, 8891, 10983, 25347, 26673, 37133, 62237, 111399, 186711, 259931, 631261, 779793, 1893783, 4418827, 13256481]

約数ペア:

[(1, 13256481), (3, 4418827), (7, 1893783), (17, 779793), (21, 631261), (51, 259931), (71, 186711), (119, 111399), (213, 62237), (357, 37133), (497, 26673), (523, 25347), (1207, 10983), (1491, 8891), (1569, 8449), (3621, 3661)]