20479959

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{10993}}^1$

素因数の和:11028

約数の個数: 20

約数和(自身を含む): 31926576

約数和(自身を除く): 11446617

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 10993, 32979, 98937, 252839, 296811, 758517, 890433, 2275551, 6826653, 20479959]

約数ペア:

[(1, 20479959), (3, 6826653), (9, 2275551), (23, 890433), (27, 758517), (69, 296811), (81, 252839), (207, 98937), (621, 32979), (1863, 10993)]