17720109

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2521}}^1$

素因数の和:2609

約数の個数: 24

約数和(自身を含む): 28327104

約数和(自身を除く): 10606995

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 2521, 7029, 7563, 22689, 27731, 83193, 178991, 249579, 536973, 1610919, 1968901, 5906703, 17720109]

約数ペア:

[(1, 17720109), (3, 5906703), (9, 1968901), (11, 1610919), (33, 536973), (71, 249579), (99, 178991), (213, 83193), (639, 27731), (781, 22689), (2343, 7563), (2521, 7029)]