20609813

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1867}}^1$

素因数の和:1976

約数の個数: 16

約数和(自身を含む): 25105920

約数和(自身を除く): 4496107

約数列:

[1, 7, 19, 83, 133, 581, 1577, 1867, 11039, 13069, 35473, 154961, 248311, 1084727, 2944259, 20609813]

約数ペア:

[(1, 20609813), (7, 2944259), (19, 1084727), (83, 248311), (133, 154961), (581, 35473), (1577, 13069), (1867, 11039)]