220131879

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{1999}}^1$

素因数の和:2131

約数の個数: 32

約数和(自身を含む): 331776000

約数和(自身を除く): 111644121

約数列:

[1, 3, 11, 33, 47, 71, 141, 213, 517, 781, 1551, 1999, 2343, 3337, 5997, 10011, 21989, 36707, 65967, 93953, 110121, 141929, 281859, 425787, 1033483, 1561219, 3100449, 4683657, 6670663, 20011989, 73377293, 220131879]

約数ペア:

[(1, 220131879), (3, 73377293), (11, 20011989), (33, 6670663), (47, 4683657), (71, 3100449), (141, 1561219), (213, 1033483), (517, 425787), (781, 281859), (1551, 141929), (1999, 110121), (2343, 93953), (3337, 65967), (5997, 36707), (10011, 21989)]