21033111

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 31850496

約数和(自身を除く): 10817385

約数列:

[1, 3, 11, 33, 47, 71, 141, 191, 213, 517, 573, 781, 1551, 2101, 2343, 3337, 6303, 8977, 10011, 13561, 26931, 36707, 40683, 98747, 110121, 149171, 296241, 447513, 637367, 1912101, 7011037, 21033111]

約数ペア:

[(1, 21033111), (3, 7011037), (11, 1912101), (33, 637367), (47, 447513), (71, 296241), (141, 149171), (191, 110121), (213, 98747), (517, 40683), (573, 36707), (781, 26931), (1551, 13561), (2101, 10011), (2343, 8977), (3337, 6303)]