20570571

素因数分解:

$3^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{857}}^1$

素因数の和:1000

約数の個数: 32

約数和(自身を含む): 35143680

約数和(自身を除く): 14573109

約数列:

[1, 3, 7, 9, 21, 27, 63, 127, 189, 381, 857, 889, 1143, 2571, 2667, 3429, 5999, 7713, 8001, 17997, 23139, 24003, 53991, 108839, 161973, 326517, 761873, 979551, 2285619, 2938653, 6856857, 20570571]

約数ペア:

[(1, 20570571), (3, 6856857), (7, 2938653), (9, 2285619), (21, 979551), (27, 761873), (63, 326517), (127, 161973), (189, 108839), (381, 53991), (857, 24003), (889, 23139), (1143, 17997), (2571, 8001), (2667, 7713), (3429, 5999)]