21000307061

素因数分解:

${\mathrm{19}}^1\times {\mathrm{1117}}^1\times {\mathrm{989507}}^1$

素因数の和:990643

約数の個数: 8

約数和(自身を含む): 22125398880

約数和(自身を除く): 1125091819

約数列:

[1, 19, 1117, 21223, 989507, 18800633, 1105279319, 21000307061]

約数ペア:

[(1, 21000307061), (19, 1105279319), (1117, 18800633), (21223, 989507)]