20291228

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{123727}}^1$

素因数の和:123772

約数の個数: 12

約数和(自身を含む): 36376032

約数和(自身を除く): 16084804

約数列:

[1, 2, 4, 41, 82, 164, 123727, 247454, 494908, 5072807, 10145614, 20291228]

約数ペア:

[(1, 20291228), (2, 10145614), (4, 5072807), (41, 494908), (82, 247454), (164, 123727)]