291236883

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{2347}}^1$

素因数の和:2687

約数の個数: 32

約数和(自身を含む): 468848640

約数和(自身を除く): 177611757

約数列:

[1, 3, 7, 19, 21, 57, 133, 311, 399, 933, 2177, 2347, 5909, 6531, 7041, 16429, 17727, 41363, 44593, 49287, 124089, 133779, 312151, 729917, 936453, 2189751, 5109419, 13868423, 15328257, 41605269, 97078961, 291236883]

約数ペア:

[(1, 291236883), (3, 97078961), (7, 41605269), (19, 15328257), (21, 13868423), (57, 5109419), (133, 2189751), (311, 936453), (399, 729917), (933, 312151), (2177, 133779), (2347, 124089), (5909, 49287), (6531, 44593), (7041, 41363), (16429, 17727)]