21230768

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{102071}}^1$

素因数の和:102092

約数の個数: 20

約数和(自身を含む): 44299248

約数和(自身を除く): 23068480

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 102071, 204142, 408284, 816568, 1326923, 1633136, 2653846, 5307692, 10615384, 21230768]

約数ペア:

[(1, 21230768), (2, 10615384), (4, 5307692), (8, 2653846), (13, 1633136), (16, 1326923), (26, 816568), (52, 408284), (104, 204142), (208, 102071)]