31893057

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 55040128

約数和(自身を除く): 23147071

約数列:

[1, 3, 7, 9, 21, 43, 61, 63, 129, 183, 193, 301, 387, 427, 549, 579, 903, 1281, 1351, 1737, 2623, 2709, 3843, 4053, 7869, 8299, 11773, 12159, 18361, 23607, 24897, 35319, 55083, 58093, 74691, 82411, 105957, 165249, 174279, 247233, 506239, 522837, 741699, 1518717, 3543673, 4556151, 10631019, 31893057]

約数ペア:

[(1, 31893057), (3, 10631019), (7, 4556151), (9, 3543673), (21, 1518717), (43, 741699), (61, 522837), (63, 506239), (129, 247233), (183, 174279), (193, 165249), (301, 105957), (387, 82411), (427, 74691), (549, 58093), (579, 55083), (903, 35319), (1281, 24897), (1351, 23607), (1737, 18361), (2623, 12159), (2709, 11773), (3843, 8299), (4053, 7869)]