21048100

素因数分解:

$2^2\times 5^2\times {\mathrm{210481}}^1$

素因数の和:210495

約数の個数: 18

約数和(自身を含む): 45674594

約数和(自身を除く): 24626494

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 210481, 420962, 841924, 1052405, 2104810, 4209620, 5262025, 10524050, 21048100]

約数ペア:

[(1, 21048100), (2, 10524050), (4, 5262025), (5, 4209620), (10, 2104810), (20, 1052405), (25, 841924), (50, 420962), (100, 210481)]