7621209

素因数分解:

$3^5\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:491

約数の個数: 24

約数和(自身を含む): 11589760

約数和(自身を除く): 3968551

約数列:

[1, 3, 9, 27, 79, 81, 237, 243, 397, 711, 1191, 2133, 3573, 6399, 10719, 19197, 31363, 32157, 94089, 96471, 282267, 846801, 2540403, 7621209]

約数ペア:

[(1, 7621209), (3, 2540403), (9, 846801), (27, 282267), (79, 96471), (81, 94089), (237, 32157), (243, 31363), (397, 19197), (711, 10719), (1191, 6399), (2133, 3573)]