21394239

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{653}}^1$

素因数の和:886

約数の個数: 16

約数和(自身を含む): 29173632

約数和(自身を除く): 7779393

約数列:

[1, 3, 67, 163, 201, 489, 653, 1959, 10921, 32763, 43751, 106439, 131253, 319317, 7131413, 21394239]

約数ペア:

[(1, 21394239), (3, 7131413), (67, 319317), (163, 131253), (201, 106439), (489, 43751), (653, 32763), (1959, 10921)]