291217199

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3917}}^1$

素因数の和:3999

約数の個数: 32

約数和(自身を含む): 386158080

約数和(自身を除く): 94940881

約数列:

[1, 7, 13, 19, 43, 91, 133, 247, 301, 559, 817, 1729, 3913, 3917, 5719, 10621, 27419, 50921, 74347, 74423, 168431, 356447, 520961, 967499, 1179017, 2189603, 3200189, 6772493, 15327221, 22401323, 41602457, 291217199]

約数ペア:

[(1, 291217199), (7, 41602457), (13, 22401323), (19, 15327221), (43, 6772493), (91, 3200189), (133, 2189603), (247, 1179017), (301, 967499), (559, 520961), (817, 356447), (1729, 168431), (3913, 74423), (3917, 74347), (5719, 50921), (10621, 27419)]