19720811

素因数分解:

${\mathrm{11}}^1\times {\mathrm{1171}}^1\times {\mathrm{1531}}^1$

素因数の和:2713

約数の個数: 8

約数和(自身を含む): 21546048

約数和(自身を除く): 1825237

約数列:

[1, 11, 1171, 1531, 12881, 16841, 1792801, 19720811]

約数ペア:

[(1, 19720811), (11, 1792801), (1171, 16841), (1531, 12881)]