21995216

素因数分解:

$2^4\times {\mathrm{263}}^1\times {\mathrm{5227}}^1$

素因数の和:5498

約数の個数: 20

約数和(自身を含む): 42785952

約数和(自身を除く): 20790736

約数列:

[1, 2, 4, 8, 16, 263, 526, 1052, 2104, 4208, 5227, 10454, 20908, 41816, 83632, 1374701, 2749402, 5498804, 10997608, 21995216]

約数ペア:

[(1, 21995216), (2, 10997608), (4, 5498804), (8, 2749402), (16, 1374701), (263, 83632), (526, 41816), (1052, 20908), (2104, 10454), (4208, 5227)]