20785515513

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3359}}^1\times {\mathrm{7187}}^1$

素因数の和:10597

約数の個数: 32

約数和(自身を含む): 32459857920

約数和(自身を除く): 11674342407

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 3359, 7187, 10077, 21561, 23513, 50309, 70539, 137719, 150927, 294667, 413157, 884001, 964033, 2062669, 2892099, 6188007, 24141133, 72423399, 168987931, 506963793, 989786453, 2969359359, 6928505171, 20785515513]

約数ペア:

[(1, 20785515513), (3, 6928505171), (7, 2969359359), (21, 989786453), (41, 506963793), (123, 168987931), (287, 72423399), (861, 24141133), (3359, 6188007), (7187, 2892099), (10077, 2062669), (21561, 964033), (23513, 884001), (50309, 413157), (70539, 294667), (137719, 150927)]