21285500

素因数分解:

$2^2\times 5^3\times {\mathrm{42571}}^1$

素因数の和:42590

約数の個数: 24

約数和(自身を含む): 46488624

約数和(自身を除く): 25203124

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 42571, 85142, 170284, 212855, 425710, 851420, 1064275, 2128550, 4257100, 5321375, 10642750, 21285500]

約数ペア:

[(1, 21285500), (2, 10642750), (4, 5321375), (5, 4257100), (10, 2128550), (20, 1064275), (25, 851420), (50, 425710), (100, 212855), (125, 170284), (250, 85142), (500, 42571)]