21657290

素因数分解:

$2^1\times 5^1\times {\mathrm{613}}^1\times {\mathrm{3533}}^1$

素因数の和:4153

約数の個数: 16

約数和(自身を含む): 39057768

約数和(自身を除く): 17400478

約数列:

[1, 2, 5, 10, 613, 1226, 3065, 3533, 6130, 7066, 17665, 35330, 2165729, 4331458, 10828645, 21657290]

約数ペア:

[(1, 21657290), (2, 10828645), (5, 4331458), (10, 2165729), (613, 35330), (1226, 17665), (3065, 7066), (3533, 6130)]