772227771

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{21001}}^1$

素因数の和:21131

約数の個数: 32

約数和(自身を含む): 1258103808

約数和(自身を除く): 485876037

約数列:

[1, 3, 7, 17, 21, 51, 103, 119, 309, 357, 721, 1751, 2163, 5253, 12257, 21001, 36771, 63003, 147007, 357017, 441021, 1071051, 2163103, 2499119, 6489309, 7497357, 15141721, 36772751, 45425163, 110318253, 257409257, 772227771]

約数ペア:

[(1, 772227771), (3, 257409257), (7, 110318253), (17, 45425163), (21, 36772751), (51, 15141721), (103, 7497357), (119, 6489309), (309, 2499119), (357, 2163103), (721, 1071051), (1751, 441021), (2163, 357017), (5253, 147007), (12257, 63003), (21001, 36771)]