20748871

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{389}}^1$

素因数の和:786

約数の個数: 16

約数和(自身を含む): 24504480

約数和(自身を除く): 3755609

約数列:

[1, 11, 13, 143, 373, 389, 4103, 4279, 4849, 5057, 53339, 55627, 145097, 1596067, 1886261, 20748871]

約数ペア:

[(1, 20748871), (11, 1886261), (13, 1596067), (143, 145097), (373, 55627), (389, 53339), (4103, 5057), (4279, 4849)]