31423959

素因数分解:

$3^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{2087}}^1$

素因数の和:2339

約数の個数: 24

約数和(自身を含む): 52116480

約数和(自身を除く): 20692521

約数列:

[1, 3, 7, 9, 21, 63, 239, 717, 1673, 2087, 2151, 5019, 6261, 14609, 15057, 18783, 43827, 131481, 498793, 1496379, 3491551, 4489137, 10474653, 31423959]

約数ペア:

[(1, 31423959), (3, 10474653), (7, 4489137), (9, 3491551), (21, 1496379), (63, 498793), (239, 131481), (717, 43827), (1673, 18783), (2087, 15057), (2151, 14609), (5019, 6261)]