21911747

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2287}}^1$

素因数の和:2378

約数の個数: 16

約数和(自身を含む): 26138112

約数和(自身を除く): 4226365

約数列:

[1, 11, 13, 67, 143, 737, 871, 2287, 9581, 25157, 29731, 153229, 327041, 1685519, 1991977, 21911747]

約数ペア:

[(1, 21911747), (11, 1991977), (13, 1685519), (67, 327041), (143, 153229), (737, 29731), (871, 25157), (2287, 9581)]