2990771

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:338

約数の個数: 16

約数和(自身を含む): 3648000

約数和(自身を除く): 657229

約数列:

[1, 7, 19, 113, 133, 199, 791, 1393, 2147, 3781, 15029, 22487, 26467, 157409, 427253, 2990771]

約数ペア:

[(1, 2990771), (7, 427253), (19, 157409), (113, 26467), (133, 22487), (199, 15029), (791, 3781), (1393, 2147)]