20790403907

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{2087}}^1\times {\mathrm{109471}}^1$

素因数の和:111578

約数の個数: 16

約数和(自身を含む): 25600684032

約数和(自身を除く): 4810280125

約数列:

[1, 7, 13, 91, 2087, 14609, 27131, 109471, 189917, 766297, 1423123, 9961861, 228465977, 1599261839, 2970057701, 20790403907]

約数ペア:

[(1, 20790403907), (7, 2970057701), (13, 1599261839), (91, 228465977), (2087, 9961861), (14609, 1423123), (27131, 766297), (109471, 189917)]