17880291

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{421}}^1$

素因数の和:465

約数の個数: 48

約数和(自身を含む): 31430560

約数和(自身を除く): 13550269

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 99, 117, 121, 143, 297, 351, 363, 421, 429, 1089, 1263, 1287, 1573, 3267, 3789, 3861, 4631, 4719, 5473, 11367, 13893, 14157, 16419, 41679, 42471, 49257, 50941, 60203, 125037, 147771, 152823, 180609, 458469, 541827, 662233, 1375407, 1625481, 1986699, 5960097, 17880291]

約数ペア:

[(1, 17880291), (3, 5960097), (9, 1986699), (11, 1625481), (13, 1375407), (27, 662233), (33, 541827), (39, 458469), (99, 180609), (117, 152823), (121, 147771), (143, 125037), (297, 60203), (351, 50941), (363, 49257), (421, 42471), (429, 41679), (1089, 16419), (1263, 14157), (1287, 13893), (1573, 11367), (3267, 5473), (3789, 4719), (3861, 4631)]