21875620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{84137}}^1$

素因数の和:84159

約数の個数: 24

約数和(自身を含む): 49473144

約数和(自身を除く): 27597524

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 84137, 168274, 336548, 420685, 841370, 1093781, 1682740, 2187562, 4375124, 5468905, 10937810, 21875620]

約数ペア:

[(1, 21875620), (2, 10937810), (4, 5468905), (5, 4375124), (10, 2187562), (13, 1682740), (20, 1093781), (26, 841370), (52, 420685), (65, 336548), (130, 168274), (260, 84137)]