20742007

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4679}}^1$

素因数の和:4734

約数の個数: 16

約数和(自身を含む): 25159680

約数和(自身を除く): 4417673

約数列:

[1, 11, 13, 31, 143, 341, 403, 4433, 4679, 51469, 60827, 145049, 669097, 1595539, 1885637, 20742007]

約数ペア:

[(1, 20742007), (11, 1885637), (13, 1595539), (31, 669097), (143, 145049), (341, 60827), (403, 51469), (4433, 4679)]