19890392

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{40759}}^1$

素因数の和:40826

約数の個数: 16

約数和(自身を含む): 37906800

約数和(自身を除く): 18016408

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 40759, 81518, 163036, 326072, 2486299, 4972598, 9945196, 19890392]

約数ペア:

[(1, 19890392), (2, 9945196), (4, 4972598), (8, 2486299), (61, 326072), (122, 163036), (244, 81518), (488, 40759)]