21899510

素因数分解:

$2^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{8081}}^1$

素因数の和:8359

約数の個数: 16

約数和(自身を含む): 39569472

約数和(自身を除く): 17669962

約数列:

[1, 2, 5, 10, 271, 542, 1355, 2710, 8081, 16162, 40405, 80810, 2189951, 4379902, 10949755, 21899510]

約数ペア:

[(1, 21899510), (2, 10949755), (5, 4379902), (10, 2189951), (271, 80810), (542, 40405), (1355, 16162), (2710, 8081)]