30921219

素因数分解:

$3^2\times 7^1\times {\mathrm{167}}^1\times {\mathrm{2939}}^1$

素因数の和:3119

約数の個数: 24

約数和(自身を含む): 51367680

約数和(自身を除く): 20446461

約数列:

[1, 3, 7, 9, 21, 63, 167, 501, 1169, 1503, 2939, 3507, 8817, 10521, 20573, 26451, 61719, 185157, 490813, 1472439, 3435691, 4417317, 10307073, 30921219]

約数ペア:

[(1, 30921219), (3, 10307073), (7, 4417317), (9, 3435691), (21, 1472439), (63, 490813), (167, 185157), (501, 61719), (1169, 26451), (1503, 20573), (2939, 10521), (3507, 8817)]