390391967

素因数分解:

$7^3\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:372

約数の個数: 32

約数和(自身を含む): 470016000

約数和(自身を除く): 79624033

約数列:

[1, 7, 49, 59, 101, 191, 343, 413, 707, 1337, 2891, 4949, 5959, 9359, 11269, 19291, 20237, 34643, 41713, 65513, 78883, 135037, 291991, 552181, 945259, 1138169, 2043937, 3865267, 6616813, 7967183, 55770281, 390391967]

約数ペア:

[(1, 390391967), (7, 55770281), (49, 7967183), (59, 6616813), (101, 3865267), (191, 2043937), (343, 1138169), (413, 945259), (707, 552181), (1337, 291991), (2891, 135037), (4949, 78883), (5959, 65513), (9359, 41713), (11269, 34643), (19291, 20237)]