20912619

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{76603}}^1$

素因数の和:76626

約数の個数: 16

約数和(自身を含む): 34318592

約数和(自身を除く): 13405973

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 76603, 229809, 536221, 995839, 1608663, 2987517, 6970873, 20912619]

約数ペア:

[(1, 20912619), (3, 6970873), (7, 2987517), (13, 1608663), (21, 995839), (39, 536221), (91, 229809), (273, 76603)]