28999984

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{139423}}^1$

素因数の和:139444

約数の個数: 20

約数和(自身を含む): 60510016

約数和(自身を除く): 31510032

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 139423, 278846, 557692, 1115384, 1812499, 2230768, 3624998, 7249996, 14499992, 28999984]

約数ペア:

[(1, 28999984), (2, 14499992), (4, 7249996), (8, 3624998), (13, 2230768), (16, 1812499), (26, 1115384), (52, 557692), (104, 278846), (208, 139423)]