21087573

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{23509}}^1$

素因数の和:23548

約数の個数: 16

約数和(自身を含む): 31597440

約数和(自身を除く): 10509867

約数列:

[1, 3, 13, 23, 39, 69, 299, 897, 23509, 70527, 305617, 540707, 916851, 1622121, 7029191, 21087573]

約数ペア:

[(1, 21087573), (3, 7029191), (13, 1622121), (23, 916851), (39, 540707), (69, 305617), (299, 70527), (897, 23509)]