20518766

素因数分解:

$2^1\times {\mathrm{113}}^1\times {\mathrm{163}}^1\times {\mathrm{557}}^1$

素因数の和:835

約数の個数: 16

約数和(自身を含む): 31297104

約数和(自身を除く): 10778338

約数列:

[1, 2, 113, 163, 226, 326, 557, 1114, 18419, 36838, 62941, 90791, 125882, 181582, 10259383, 20518766]

約数ペア:

[(1, 20518766), (2, 10259383), (113, 181582), (163, 125882), (226, 90791), (326, 62941), (557, 36838), (1114, 18419)]