66972951

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{643}}^1$

素因数の和:883

約数の個数: 24

約数和(自身を含む): 98856576

約数和(自身を除く): 31883625

約数列:

[1, 3, 9, 71, 163, 213, 489, 639, 643, 1467, 1929, 5787, 11573, 34719, 45653, 104157, 104809, 136959, 314427, 410877, 943281, 7441439, 22324317, 66972951]

約数ペア:

[(1, 66972951), (3, 22324317), (9, 7441439), (71, 943281), (163, 410877), (213, 314427), (489, 136959), (639, 104809), (643, 104157), (1467, 45653), (1929, 34719), (5787, 11573)]