20984589

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{4391}}^1$

素因数の和:4462

約数の個数: 20

約数和(自身を含む): 31885920

約数和(自身を除く): 10901331

約数列:

[1, 3, 9, 27, 59, 81, 177, 531, 1593, 4391, 4779, 13173, 39519, 118557, 259069, 355671, 777207, 2331621, 6994863, 20984589]

約数ペア:

[(1, 20984589), (3, 6994863), (9, 2331621), (27, 777207), (59, 355671), (81, 259069), (177, 118557), (531, 39519), (1593, 13173), (4391, 4779)]