21681868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{24527}}^1$

素因数の和:24561

約数の個数: 24

約数和(自身を含む): 43267392

約数和(自身を除く): 21585524

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 884, 24527, 49054, 98108, 318851, 416959, 637702, 833918, 1275404, 1667836, 5420467, 10840934, 21681868]

約数ペア:

[(1, 21681868), (2, 10840934), (4, 5420467), (13, 1667836), (17, 1275404), (26, 833918), (34, 637702), (52, 416959), (68, 318851), (221, 98108), (442, 49054), (884, 24527)]