20181687

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{1609}}^1$

素因数の和:1762

約数の個数: 16

約数和(自身を含む): 27898080

約数和(自身を除く): 7716393

約数列:

[1, 3, 37, 111, 113, 339, 1609, 4181, 4827, 12543, 59533, 178599, 181817, 545451, 6727229, 20181687]

約数ペア:

[(1, 20181687), (3, 6727229), (37, 545451), (111, 181817), (113, 178599), (339, 59533), (1609, 12543), (4181, 4827)]