20347535

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4409}}^1$

素因数の和:4498

約数の個数: 16

約数和(自身を含む): 26671680

約数和(自身を除く): 6324145

約数列:

[1, 5, 13, 65, 71, 355, 923, 4409, 4615, 22045, 57317, 286585, 313039, 1565195, 4069507, 20347535]

約数ペア:

[(1, 20347535), (5, 4069507), (13, 1565195), (65, 313039), (71, 286585), (355, 57317), (923, 22045), (4409, 4615)]