18155207

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{397}}^1$

素因数の和:590

約数の個数: 16

約数和(自身を含む): 21396480

約数和(自身を除く): 3241273

約数列:

[1, 7, 47, 139, 329, 397, 973, 2779, 6533, 18659, 45731, 55183, 130613, 386281, 2593601, 18155207]

約数ペア:

[(1, 18155207), (7, 2593601), (47, 386281), (139, 130613), (329, 55183), (397, 45731), (973, 18659), (2779, 6533)]