21517617

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{4691}}^1$

素因数の和:4844

約数の個数: 16

約数和(自身を含む): 31530240

約数和(自身を除く): 10012623

約数列:

[1, 3, 11, 33, 139, 417, 1529, 4587, 4691, 14073, 51601, 154803, 652049, 1956147, 7172539, 21517617]

約数ペア:

[(1, 21517617), (3, 7172539), (11, 1956147), (33, 652049), (139, 154803), (417, 51601), (1529, 14073), (4587, 4691)]