21351490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{125597}}^1$

素因数の和:125621

約数の個数: 16

約数和(自身を含む): 40693752

約数和(自身を除く): 19342262

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 125597, 251194, 627985, 1255970, 2135149, 4270298, 10675745, 21351490]

約数ペア:

[(1, 21351490), (2, 10675745), (5, 4270298), (10, 2135149), (17, 1255970), (34, 627985), (85, 251194), (170, 125597)]