20481687

素因数分解:

$3^3\times {\mathrm{317}}^1\times {\mathrm{2393}}^1$

素因数の和:2719

約数の個数: 16

約数和(自身を含む): 30451680

約数和(自身を除く): 9969993

約数列:

[1, 3, 9, 27, 317, 951, 2393, 2853, 7179, 8559, 21537, 64611, 758581, 2275743, 6827229, 20481687]

約数ペア:

[(1, 20481687), (3, 6827229), (9, 2275743), (27, 758581), (317, 64611), (951, 21537), (2393, 8559), (2853, 7179)]