19765636

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{2129}}^1$

素因数の和:2355

約数の個数: 24

約数和(自身を含む): 37931040

約数和(自身を除く): 18165404

約数列:

[1, 2, 4, 11, 22, 44, 211, 422, 844, 2129, 2321, 4258, 4642, 8516, 9284, 23419, 46838, 93676, 449219, 898438, 1796876, 4941409, 9882818, 19765636]

約数ペア:

[(1, 19765636), (2, 9882818), (4, 4941409), (11, 1796876), (22, 898438), (44, 449219), (211, 93676), (422, 46838), (844, 23419), (2129, 9284), (2321, 8516), (4258, 4642)]