21716900

素因数分解:

$2^2\times 5^2\times {\mathrm{217169}}^1$

素因数の和:217183

約数の個数: 18

約数和(自身を含む): 47125890

約数和(自身を除く): 25408990

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 217169, 434338, 868676, 1085845, 2171690, 4343380, 5429225, 10858450, 21716900]

約数ペア:

[(1, 21716900), (2, 10858450), (4, 5429225), (5, 4343380), (10, 2171690), (20, 1085845), (25, 868676), (50, 434338), (100, 217169)]