1899009

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{701}}^1$

素因数の和:757

約数の個数: 24

約数和(自身を含む): 3212352

約数和(自身を除く): 1313343

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 701, 903, 2103, 2709, 4907, 6309, 14721, 30143, 44163, 90429, 211001, 271287, 633003, 1899009]

約数ペア:

[(1, 1899009), (3, 633003), (7, 271287), (9, 211001), (21, 90429), (43, 44163), (63, 30143), (129, 14721), (301, 6309), (387, 4907), (701, 2709), (903, 2103)]