21305178

素因数分解:

$2^1\times 3^2\times {\mathrm{277}}^1\times {\mathrm{4273}}^1$

素因数の和:4558

約数の個数: 24

約数和(自身を含む): 46338708

約数和(自身を除く): 25033530

約数列:

[1, 2, 3, 6, 9, 18, 277, 554, 831, 1662, 2493, 4273, 4986, 8546, 12819, 25638, 38457, 76914, 1183621, 2367242, 3550863, 7101726, 10652589, 21305178]

約数ペア:

[(1, 21305178), (2, 10652589), (3, 7101726), (6, 3550863), (9, 2367242), (18, 1183621), (277, 76914), (554, 38457), (831, 25638), (1662, 12819), (2493, 8546), (4273, 4986)]