20438618

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{1201}}^1$

素因数の和:1397

約数の個数: 16

約数和(自身を含む): 31386624

約数和(自身を除く): 10948006

約数列:

[1, 2, 67, 127, 134, 254, 1201, 2402, 8509, 17018, 80467, 152527, 160934, 305054, 10219309, 20438618]

約数ペア:

[(1, 20438618), (2, 10219309), (67, 305054), (127, 160934), (134, 152527), (254, 80467), (1201, 17018), (2402, 8509)]