20820561

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{11783}}^1$

素因数の和:11836

約数の個数: 16

約数和(自身を含む): 30167040

約数和(自身を除く): 9346479

約数列:

[1, 3, 19, 31, 57, 93, 589, 1767, 11783, 35349, 223877, 365273, 671631, 1095819, 6940187, 20820561]

約数ペア:

[(1, 20820561), (3, 6940187), (19, 1095819), (31, 671631), (57, 365273), (93, 223877), (589, 35349), (1767, 11783)]