20911059

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{6163}}^1$

素因数の和:6211

約数の個数: 24

約数和(自身を含む): 33655440

約数和(自身を除く): 12744381

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 261, 377, 1131, 3393, 6163, 18489, 55467, 80119, 178727, 240357, 536181, 721071, 1608543, 2323451, 6970353, 20911059]

約数ペア:

[(1, 20911059), (3, 6970353), (9, 2323451), (13, 1608543), (29, 721071), (39, 536181), (87, 240357), (117, 178727), (261, 80119), (377, 55467), (1131, 18489), (3393, 6163)]