19806363

素因数分解:

$3^4\times {\mathrm{439}}^1\times {\mathrm{557}}^1$

素因数の和:1008

約数の個数: 20

約数和(自身を含む): 29707920

約数和(自身を除く): 9901557

約数列:

[1, 3, 9, 27, 81, 439, 557, 1317, 1671, 3951, 5013, 11853, 15039, 35559, 45117, 244523, 733569, 2200707, 6602121, 19806363]

約数ペア:

[(1, 19806363), (3, 6602121), (9, 2200707), (27, 733569), (81, 244523), (439, 45117), (557, 35559), (1317, 15039), (1671, 11853), (3951, 5013)]