21212406

素因数分解:

$2^1\times 3^2\times {\mathrm{727}}^1\times {\mathrm{1621}}^1$

素因数の和:2356

約数の個数: 24

約数和(自身を含む): 46051824

約数和(自身を除く): 24839418

約数列:

[1, 2, 3, 6, 9, 18, 727, 1454, 1621, 2181, 3242, 4362, 4863, 6543, 9726, 13086, 14589, 29178, 1178467, 2356934, 3535401, 7070802, 10606203, 21212406]

約数ペア:

[(1, 21212406), (2, 10606203), (3, 7070802), (6, 3535401), (9, 2356934), (18, 1178467), (727, 29178), (1454, 14589), (1621, 13086), (2181, 9726), (3242, 6543), (4362, 4863)]