399331317

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{36781}}^1$

素因数の和:36849

約数の個数: 32

約数和(自身を含む): 677965824

約数和(自身を除く): 278634507

約数列:

[1, 3, 7, 11, 21, 33, 47, 77, 141, 231, 329, 517, 987, 1551, 3619, 10857, 36781, 110343, 257467, 404591, 772401, 1213773, 1728707, 2832137, 5186121, 8496411, 12100949, 19015777, 36302847, 57047331, 133110439, 399331317]

約数ペア:

[(1, 399331317), (3, 133110439), (7, 57047331), (11, 36302847), (21, 19015777), (33, 12100949), (47, 8496411), (77, 5186121), (141, 2832137), (231, 1728707), (329, 1213773), (517, 772401), (987, 404591), (1551, 257467), (3619, 110343), (10857, 36781)]