30990861

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4409}}^1$

素因数の和:4497

約数の個数: 24

約数和(自身を含む): 49533120

約数和(自身を除く): 18542259

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 4409, 7029, 13227, 39681, 48499, 145497, 313039, 436491, 939117, 2817351, 3443429, 10330287, 30990861]

約数ペア:

[(1, 30990861), (3, 10330287), (9, 3443429), (11, 2817351), (33, 939117), (71, 436491), (99, 313039), (213, 145497), (639, 48499), (781, 39681), (2343, 13227), (4409, 7029)]