1287279

素因数分解:

$3^3\times 7^3\times {\mathrm{139}}^1$

素因数の和:169

約数の個数: 32

約数和(自身を含む): 2240000

約数和(自身を除く): 952721

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 139, 147, 189, 343, 417, 441, 973, 1029, 1251, 1323, 2919, 3087, 3753, 6811, 8757, 9261, 20433, 26271, 47677, 61299, 143031, 183897, 429093, 1287279]

約数ペア:

[(1, 1287279), (3, 429093), (7, 183897), (9, 143031), (21, 61299), (27, 47677), (49, 26271), (63, 20433), (139, 9261), (147, 8757), (189, 6811), (343, 3753), (417, 3087), (441, 2919), (973, 1323), (1029, 1251)]