21225800

素因数分解:

$2^3\times 5^2\times {\mathrm{106129}}^1$

素因数の和:106145

約数の個数: 24

約数和(自身を含む): 49350450

約数和(自身を除く): 28124650

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 106129, 212258, 424516, 530645, 849032, 1061290, 2122580, 2653225, 4245160, 5306450, 10612900, 21225800]

約数ペア:

[(1, 21225800), (2, 10612900), (4, 5306450), (5, 4245160), (8, 2653225), (10, 2122580), (20, 1061290), (25, 849032), (40, 530645), (50, 424516), (100, 212258), (200, 106129)]