21349984

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{9397}}^1$

素因数の和:9478

約数の個数: 24

約数和(自身を含む): 42629328

約数和(自身を除く): 21279344

約数列:

[1, 2, 4, 8, 16, 32, 71, 142, 284, 568, 1136, 2272, 9397, 18794, 37588, 75176, 150352, 300704, 667187, 1334374, 2668748, 5337496, 10674992, 21349984]

約数ペア:

[(1, 21349984), (2, 10674992), (4, 5337496), (8, 2668748), (16, 1334374), (32, 667187), (71, 300704), (142, 150352), (284, 75176), (568, 37588), (1136, 18794), (2272, 9397)]