28980259

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{2309}}^1$

素因数の和:2490

約数の個数: 16

約数和(自身を含む): 36368640

約数和(自身を除く): 7388381

約数列:

[1, 7, 11, 77, 163, 1141, 1793, 2309, 12551, 16163, 25399, 177793, 376367, 2634569, 4140037, 28980259]

約数ペア:

[(1, 28980259), (7, 4140037), (11, 2634569), (77, 376367), (163, 177793), (1141, 25399), (1793, 16163), (2309, 12551)]