19981522

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31319}}^1$

素因数の和:31361

約数の個数: 16

約数和(自身を含む): 33825600

約数和(自身を除く): 13844078

約数列:

[1, 2, 11, 22, 29, 58, 319, 638, 31319, 62638, 344509, 689018, 908251, 1816502, 9990761, 19981522]

約数ペア:

[(1, 19981522), (2, 9990761), (11, 1816502), (22, 908251), (29, 689018), (58, 344509), (319, 62638), (638, 31319)]