40788009

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{21277}}^1$

素因数の和:21357

約数の個数: 16

約数和(自身を含む): 61280640

約数和(自身を除く): 20492631

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 21277, 63831, 191493, 574479, 1510667, 4532001, 13596003, 40788009]

約数ペア:

[(1, 40788009), (3, 13596003), (9, 4532001), (27, 1510667), (71, 574479), (213, 191493), (639, 63831), (1917, 21277)]