25431721

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{1153}}^1$

素因数の和:1320

約数の個数: 16

約数和(自身を含む): 30576384

約数和(自身を除く): 5144663

約数列:

[1, 7, 23, 137, 161, 959, 1153, 3151, 8071, 22057, 26519, 157961, 185633, 1105727, 3633103, 25431721]

約数ペア:

[(1, 25431721), (7, 3633103), (23, 1105727), (137, 185633), (161, 157961), (959, 26519), (1153, 22057), (3151, 8071)]