21380050

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{25153}}^1$

素因数の和:25182

約数の個数: 24

約数和(自身を含む): 42107796

約数和(自身を除く): 20727746

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 170, 425, 850, 25153, 50306, 125765, 251530, 427601, 628825, 855202, 1257650, 2138005, 4276010, 10690025, 21380050]

約数ペア:

[(1, 21380050), (2, 10690025), (5, 4276010), (10, 2138005), (17, 1257650), (25, 855202), (34, 628825), (50, 427601), (85, 251530), (170, 125765), (425, 50306), (850, 25153)]