21721292

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{1319}}^1$

素因数の和:1525

約数の個数: 24

約数和(自身を含む): 39916800

約数和(自身を除く): 18195508

約数列:

[1, 2, 4, 23, 46, 92, 179, 358, 716, 1319, 2638, 4117, 5276, 8234, 16468, 30337, 60674, 121348, 236101, 472202, 944404, 5430323, 10860646, 21721292]

約数ペア:

[(1, 21721292), (2, 10860646), (4, 5430323), (23, 944404), (46, 472202), (92, 236101), (179, 121348), (358, 60674), (716, 30337), (1319, 16468), (2638, 8234), (4117, 5276)]