20591305

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{20287}}^1$

素因数の和:20328

約数の個数: 16

約数和(自身を含む): 29214720

約数和(自身を除く): 8623415

約数列:

[1, 5, 7, 29, 35, 145, 203, 1015, 20287, 101435, 142009, 588323, 710045, 2941615, 4118261, 20591305]

約数ペア:

[(1, 20591305), (5, 4118261), (7, 2941615), (29, 710045), (35, 588323), (145, 142009), (203, 101435), (1015, 20287)]