21818416

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{20353}}^1$

素因数の和:20428

約数の個数: 20

約数和(自身を含む): 42906232

約数和(自身を除く): 21087816

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 20353, 40706, 81412, 162824, 325648, 1363651, 2727302, 5454604, 10909208, 21818416]

約数ペア:

[(1, 21818416), (2, 10909208), (4, 5454604), (8, 2727302), (16, 1363651), (67, 325648), (134, 162824), (268, 81412), (536, 40706), (1072, 20353)]