12720227581

素因数分解:

${\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{39397}}^1$

素因数の和:39604

約数の個数: 16

約数和(自身を含む): 13288157440

約数和(自身を除く): 567929859

約数列:

[1, 61, 67, 79, 4087, 4819, 5293, 39397, 322873, 2403217, 2639599, 3112363, 161015539, 189854143, 208528321, 12720227581]

約数ペア:

[(1, 12720227581), (61, 208528321), (67, 189854143), (79, 161015539), (4087, 3112363), (4819, 2639599), (5293, 2403217), (39397, 322873)]