291299281

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{3331}}^1$

素因数の和:3413

約数の個数: 24

約数和(自身を含む): 370571712

約数和(自身を除く): 79272431

約数列:

[1, 7, 13, 31, 91, 217, 403, 961, 2821, 3331, 6727, 12493, 23317, 43303, 87451, 103261, 303121, 722827, 1342393, 3201091, 9396751, 22407637, 41614183, 291299281]

約数ペア:

[(1, 291299281), (7, 41614183), (13, 22407637), (31, 9396751), (91, 3201091), (217, 1342393), (403, 722827), (961, 303121), (2821, 103261), (3331, 87451), (6727, 43303), (12493, 23317)]