123239987

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{7639}}^1$

素因数の和:7742

約数の個数: 16

約数和(自身を含む): 142470720

約数和(自身を除く): 19230733

約数列:

[1, 13, 17, 73, 221, 949, 1241, 7639, 16133, 99307, 129863, 557647, 1688219, 7249411, 9479999, 123239987]

約数ペア:

[(1, 123239987), (13, 9479999), (17, 7249411), (73, 1688219), (221, 557647), (949, 129863), (1241, 99307), (7639, 16133)]