20280117

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1153}}^1$

素因数の和:1221

約数の個数: 32

約数和(自身を含む): 32570496

約数和(自身を除く): 12290379

約数列:

[1, 3, 11, 13, 33, 39, 41, 123, 143, 429, 451, 533, 1153, 1353, 1599, 3459, 5863, 12683, 14989, 17589, 38049, 44967, 47273, 141819, 164879, 494637, 520003, 614549, 1560009, 1843647, 6760039, 20280117]

約数ペア:

[(1, 20280117), (3, 6760039), (11, 1843647), (13, 1560009), (33, 614549), (39, 520003), (41, 494637), (123, 164879), (143, 141819), (429, 47273), (451, 44967), (533, 38049), (1153, 17589), (1353, 14989), (1599, 12683), (3459, 5863)]