15904217

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{397}}^1$

素因数の和:560

約数の個数: 16

約数和(自身を含む): 18721920

約数和(自身を除く): 2817703

約数列:

[1, 7, 59, 97, 397, 413, 679, 2779, 5723, 23423, 38509, 40061, 163961, 269563, 2272031, 15904217]

約数ペア:

[(1, 15904217), (7, 2272031), (59, 269563), (97, 163961), (397, 40061), (413, 38509), (679, 23423), (2779, 5723)]