20738081

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{811}}^1$

素因数の和:1112

約数の個数: 16

約数和(自身を含む): 25646208

約数和(自身を除く): 4908127

約数列:

[1, 7, 13, 91, 281, 811, 1967, 3653, 5677, 10543, 25571, 73801, 227891, 1595237, 2962583, 20738081]

約数ペア:

[(1, 20738081), (7, 2962583), (13, 1595237), (91, 227891), (281, 73801), (811, 25571), (1967, 10543), (3653, 5677)]