21916900

素因数分解:

$2^2\times 5^2\times {\mathrm{219169}}^1$

素因数の和:219183

約数の個数: 18

約数和(自身を含む): 47559890

約数和(自身を除く): 25642990

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 219169, 438338, 876676, 1095845, 2191690, 4383380, 5479225, 10958450, 21916900]

約数ペア:

[(1, 21916900), (2, 10958450), (4, 5479225), (5, 4383380), (10, 2191690), (20, 1095845), (25, 876676), (50, 438338), (100, 219169)]