20666529

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{607}}^1$

素因数の和:726

約数の個数: 32

約数和(自身を含む): 33367040

約数和(自身を除く): 12700511

約数列:

[1, 3, 9, 13, 27, 39, 97, 117, 291, 351, 607, 873, 1261, 1821, 2619, 3783, 5463, 7891, 11349, 16389, 23673, 34047, 58879, 71019, 176637, 213057, 529911, 765427, 1589733, 2296281, 6888843, 20666529]

約数ペア:

[(1, 20666529), (3, 6888843), (9, 2296281), (13, 1589733), (27, 765427), (39, 529911), (97, 213057), (117, 176637), (291, 71019), (351, 58879), (607, 34047), (873, 23673), (1261, 16389), (1821, 11349), (2619, 7891), (3783, 5463)]