21357136

素因数分解:

$2^4\times {\mathrm{601}}^1\times {\mathrm{2221}}^1$

素因数の和:2830

約数の個数: 20

約数和(自身を含む): 41466964

約数和(自身を除く): 20109828

約数列:

[1, 2, 4, 8, 16, 601, 1202, 2221, 2404, 4442, 4808, 8884, 9616, 17768, 35536, 1334821, 2669642, 5339284, 10678568, 21357136]

約数ペア:

[(1, 21357136), (2, 10678568), (4, 5339284), (8, 2669642), (16, 1334821), (601, 35536), (1202, 17768), (2221, 9616), (2404, 8884), (4442, 4808)]