20726993

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{1013}}^1$

素因数の和:1136

約数の個数: 16

約数和(自身を含む): 24660480

約数和(自身を除く): 3933487

約数列:

[1, 7, 37, 79, 259, 553, 1013, 2923, 7091, 20461, 37481, 80027, 262367, 560189, 2960999, 20726993]

約数ペア:

[(1, 20726993), (7, 2960999), (37, 560189), (79, 262367), (259, 80027), (553, 37481), (1013, 20461), (2923, 7091)]