13907781

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{1667}}^1$

素因数の和:1782

約数の個数: 20

約数和(自身を含む): 20990112

約数和(自身を除く): 7082331

約数列:

[1, 3, 9, 27, 81, 103, 309, 927, 1667, 2781, 5001, 8343, 15003, 45009, 135027, 171701, 515103, 1545309, 4635927, 13907781]

約数ペア:

[(1, 13907781), (3, 4635927), (9, 1545309), (27, 515103), (81, 171701), (103, 135027), (309, 45009), (927, 15003), (1667, 8343), (2781, 5001)]