21050500

素因数分解:

$2^2\times 5^3\times {\mathrm{42101}}^1$

素因数の和:42120

約数の個数: 24

約数和(自身を含む): 45975384

約数和(自身を除く): 24924884

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 42101, 84202, 168404, 210505, 421010, 842020, 1052525, 2105050, 4210100, 5262625, 10525250, 21050500]

約数ペア:

[(1, 21050500), (2, 10525250), (4, 5262625), (5, 4210100), (10, 2105050), (20, 1052525), (25, 842020), (50, 421010), (100, 210505), (125, 168404), (250, 84202), (500, 42101)]