128545319

素因数分解:

$7^1\times {\mathrm{137}}^1\times {\mathrm{311}}^1\times {\mathrm{431}}^1$

素因数の和:886

約数の個数: 16

約数和(自身を含む): 148801536

約数和(自身を除く): 20256217

約数列:

[1, 7, 137, 311, 431, 959, 2177, 3017, 42607, 59047, 134041, 298249, 413329, 938287, 18363617, 128545319]

約数ペア:

[(1, 128545319), (7, 18363617), (137, 938287), (311, 413329), (431, 298249), (959, 134041), (2177, 59047), (3017, 42607)]