259401471

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{2399}}^1$

素因数の和:2699

約数の個数: 32

約数和(自身を含む): 417792000

約数和(自身を除く): 158390529

約数列:

[1, 3, 7, 19, 21, 57, 133, 271, 399, 813, 1897, 2399, 5149, 5691, 7197, 15447, 16793, 36043, 45581, 50379, 108129, 136743, 319067, 650129, 957201, 1950387, 4550903, 12352451, 13652709, 37057353, 86467157, 259401471]

約数ペア:

[(1, 259401471), (3, 86467157), (7, 37057353), (19, 13652709), (21, 12352451), (57, 4550903), (133, 1950387), (271, 957201), (399, 650129), (813, 319067), (1897, 136743), (2399, 108129), (5149, 50379), (5691, 45581), (7197, 36043), (15447, 16793)]