20705545

素因数分解:

$5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{2539}}^1$

素因数の和:2784

約数の個数: 16

約数和(自身を含む): 28529280

約数和(自身を除く): 7823735

約数列:

[1, 5, 7, 35, 233, 1165, 1631, 2539, 8155, 12695, 17773, 88865, 591587, 2957935, 4141109, 20705545]

約数ペア:

[(1, 20705545), (5, 4141109), (7, 2957935), (35, 591587), (233, 88865), (1165, 17773), (1631, 12695), (2539, 8155)]