21104830

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{49081}}^1$

素因数の和:49131

約数の個数: 16

約数和(自身を含む): 38872944

約数和(自身を除く): 17768114

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 49081, 98162, 245405, 490810, 2110483, 4220966, 10552415, 21104830]

約数ペア:

[(1, 21104830), (2, 10552415), (5, 4220966), (10, 2110483), (43, 490810), (86, 245405), (215, 98162), (430, 49081)]