20560959

素因数分解:

$3^5\times {\mathrm{191}}^1\times {\mathrm{443}}^1$

素因数の和:649

約数の個数: 24

約数和(自身を含む): 31030272

約数和(自身を除く): 10469313

約数列:

[1, 3, 9, 27, 81, 191, 243, 443, 573, 1329, 1719, 3987, 5157, 11961, 15471, 35883, 46413, 84613, 107649, 253839, 761517, 2284551, 6853653, 20560959]

約数ペア:

[(1, 20560959), (3, 6853653), (9, 2284551), (27, 761517), (81, 253839), (191, 107649), (243, 84613), (443, 46413), (573, 35883), (1329, 15471), (1719, 11961), (3987, 5157)]