31271247

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{3571}}^1$

素因数の和:3723

約数の個数: 24

約数和(自身を含む): 52008320

約数和(自身を除く): 20737073

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 2919, 3571, 8757, 10713, 24997, 32139, 74991, 224973, 496369, 1489107, 3474583, 4467321, 10423749, 31271247]

約数ペア:

[(1, 31271247), (3, 10423749), (7, 4467321), (9, 3474583), (21, 1489107), (63, 496369), (139, 224973), (417, 74991), (973, 32139), (1251, 24997), (2919, 10713), (3571, 8757)]