21608109

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2221}}^1$

素因数の和:2297

約数の個数: 24

約数和(自身を含む): 33276672

約数和(自身を除く): 11668563

約数列:

[1, 3, 9, 23, 47, 69, 141, 207, 423, 1081, 2221, 3243, 6663, 9729, 19989, 51083, 104387, 153249, 313161, 459747, 939483, 2400901, 7202703, 21608109]

約数ペア:

[(1, 21608109), (3, 7202703), (9, 2400901), (23, 939483), (47, 459747), (69, 313161), (141, 153249), (207, 104387), (423, 51083), (1081, 19989), (2221, 9729), (3243, 6663)]