20161998

素因数分解:

$2^1\times 3^2\times {\mathrm{691}}^1\times {\mathrm{1621}}^1$

素因数の和:2320

約数の個数: 24

約数和(自身を含む): 43774536

約数和(自身を除く): 23612538

約数列:

[1, 2, 3, 6, 9, 18, 691, 1382, 1621, 2073, 3242, 4146, 4863, 6219, 9726, 12438, 14589, 29178, 1120111, 2240222, 3360333, 6720666, 10080999, 20161998]

約数ペア:

[(1, 20161998), (2, 10080999), (3, 6720666), (6, 3360333), (9, 2240222), (18, 1120111), (691, 29178), (1382, 14589), (1621, 12438), (2073, 9726), (3242, 6219), (4146, 4863)]