25157881

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:205

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 6775559

約数列:

[1, 7, 19, 43, 53, 83, 133, 301, 371, 581, 817, 1007, 1577, 2279, 3569, 4399, 5719, 7049, 11039, 15953, 24983, 30793, 43301, 67811, 83581, 189157, 303107, 474677, 585067, 1324099, 3593983, 25157881]

約数ペア:

[(1, 25157881), (7, 3593983), (19, 1324099), (43, 585067), (53, 474677), (83, 303107), (133, 189157), (301, 83581), (371, 67811), (581, 43301), (817, 30793), (1007, 24983), (1577, 15953), (2279, 11039), (3569, 7049), (4399, 5719)]