20765559

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{2141}}^1$

素因数の和:2258

約数の個数: 16

約数和(自身を含む): 28685664

約数和(自身を除く): 7920105

約数列:

[1, 3, 53, 61, 159, 183, 2141, 3233, 6423, 9699, 113473, 130601, 340419, 391803, 6921853, 20765559]

約数ペア:

[(1, 20765559), (3, 6921853), (53, 391803), (61, 340419), (159, 130601), (183, 113473), (2141, 9699), (3233, 6423)]