20777939

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{5569}}^1$

素因数の和:5630

約数の個数: 16

約数和(自身を含む): 26201280

約数和(自身を除く): 5423341

約数列:

[1, 7, 13, 41, 91, 287, 533, 3731, 5569, 38983, 72397, 228329, 506779, 1598303, 2968277, 20777939]

約数ペア:

[(1, 20777939), (7, 2968277), (13, 1598303), (41, 506779), (91, 228329), (287, 72397), (533, 38983), (3731, 5569)]