20970765

素因数分解:

$3^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{953}}^1$

素因数の和:1130

約数の個数: 32

約数和(自身を含む): 37549440

約数和(自身を除く): 16578675

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 163, 489, 815, 953, 1467, 2445, 2859, 4401, 4765, 7335, 8577, 14295, 22005, 25731, 42885, 128655, 155339, 466017, 776695, 1398051, 2330085, 4194153, 6990255, 20970765]

約数ペア:

[(1, 20970765), (3, 6990255), (5, 4194153), (9, 2330085), (15, 1398051), (27, 776695), (45, 466017), (135, 155339), (163, 128655), (489, 42885), (815, 25731), (953, 22005), (1467, 14295), (2445, 8577), (2859, 7335), (4401, 4765)]