40505997

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{3881}}^1$

素因数の和:3969

約数の個数: 24

約数和(自身を含む): 63726912

約数和(自身を除く): 23220915

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 1491, 3479, 3881, 10437, 11643, 27167, 81501, 190169, 275551, 570507, 826653, 1928857, 5786571, 13501999, 40505997]

約数ペア:

[(1, 40505997), (3, 13501999), (7, 5786571), (21, 1928857), (49, 826653), (71, 570507), (147, 275551), (213, 190169), (497, 81501), (1491, 27167), (3479, 11643), (3881, 10437)]