20582721

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 31987200

約数和(自身を除く): 11404479

約数列:

[1, 3, 9, 27, 29, 87, 97, 261, 271, 291, 783, 813, 873, 2439, 2619, 2813, 7317, 7859, 8439, 23577, 25317, 26287, 70731, 75951, 78861, 212193, 236583, 709749, 762323, 2286969, 6860907, 20582721]

約数ペア:

[(1, 20582721), (3, 6860907), (9, 2286969), (27, 762323), (29, 709749), (87, 236583), (97, 212193), (261, 78861), (271, 75951), (291, 70731), (783, 26287), (813, 25317), (873, 23577), (2439, 8439), (2619, 7859), (2813, 7317)]