20265909

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1\times {\mathrm{607}}^1$

素因数の和:1000

約数の個数: 16

約数和(自身を含む): 28016640

約数和(自身を除く): 7750731

約数列:

[1, 3, 31, 93, 359, 607, 1077, 1821, 11129, 18817, 33387, 56451, 217913, 653739, 6755303, 20265909]

約数ペア:

[(1, 20265909), (3, 6755303), (31, 653739), (93, 217913), (359, 56451), (607, 33387), (1077, 18817), (1821, 11129)]