21986127

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{19861}}^1$

素因数の和:19911

約数の個数: 16

約数和(自身を含む): 33368160

約数和(自身を除く): 11382033

約数列:

[1, 3, 9, 27, 41, 123, 369, 1107, 19861, 59583, 178749, 536247, 814301, 2442903, 7328709, 21986127]

約数ペア:

[(1, 21986127), (3, 7328709), (9, 2442903), (27, 814301), (41, 536247), (123, 178749), (369, 59583), (1107, 19861)]