21350384

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{121309}}^1$

素因数の和:121328

約数の個数: 20

約数和(自身を含む): 45127320

約数和(自身を除く): 23776936

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 121309, 242618, 485236, 970472, 1334399, 1940944, 2668798, 5337596, 10675192, 21350384]

約数ペア:

[(1, 21350384), (2, 10675192), (4, 5337596), (8, 2668798), (11, 1940944), (16, 1334399), (22, 970472), (44, 485236), (88, 242618), (176, 121309)]