20690021

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{821}}^1$

素因数の和:940

約数の個数: 16

約数和(自身を含む): 23673600

約数和(自身を除く): 2983579

約数列:

[1, 11, 29, 79, 319, 821, 869, 2291, 9031, 23809, 25201, 64859, 261899, 713449, 1880911, 20690021]

約数ペア:

[(1, 20690021), (11, 1880911), (29, 713449), (79, 261899), (319, 64859), (821, 25201), (869, 23809), (2291, 9031)]