20902986

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{89329}}^1$

素因数の和:89350

約数の個数: 24

約数和(自身を含む): 48774180

約数和(自身を除く): 27871194

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 89329, 178658, 267987, 535974, 803961, 1161277, 1607922, 2322554, 3483831, 6967662, 10451493, 20902986]

約数ペア:

[(1, 20902986), (2, 10451493), (3, 6967662), (6, 3483831), (9, 2322554), (13, 1607922), (18, 1161277), (26, 803961), (39, 535974), (78, 267987), (117, 178658), (234, 89329)]