20124957

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{3907}}^1$

素因数の和:4028

約数の個数: 16

約数和(自身を含む): 28700352

約数和(自身を除く): 8575395

約数列:

[1, 3, 17, 51, 101, 303, 1717, 3907, 5151, 11721, 66419, 199257, 394607, 1183821, 6708319, 20124957]

約数ペア:

[(1, 20124957), (3, 6708319), (17, 1183821), (51, 394607), (101, 199257), (303, 66419), (1717, 11721), (3907, 5151)]