20517935

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1993}}^1$

素因数の和:2098

約数の個数: 16

約数和(自身を含む): 25842240

約数和(自身を除く): 5324305

約数列:

[1, 5, 29, 71, 145, 355, 1993, 2059, 9965, 10295, 57797, 141503, 288985, 707515, 4103587, 20517935]

約数ペア:

[(1, 20517935), (5, 4103587), (29, 707515), (71, 288985), (145, 141503), (355, 57797), (1993, 10295), (2059, 9965)]