19872490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{10627}}^1$

素因数の和:10662

約数の個数: 32

約数和(自身を含む): 41321664

約数和(自身を除く): 21449174

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870, 10627, 21254, 53135, 106270, 116897, 180659, 233794, 361318, 584485, 903295, 1168970, 1806590, 1987249, 3974498, 9936245, 19872490]

約数ペア:

[(1, 19872490), (2, 9936245), (5, 3974498), (10, 1987249), (11, 1806590), (17, 1168970), (22, 903295), (34, 584485), (55, 361318), (85, 233794), (110, 180659), (170, 116897), (187, 106270), (374, 53135), (935, 21254), (1870, 10627)]