20646504

素因数分解:

$2^3\times 3^2\times {\mathrm{139}}^1\times {\mathrm{2063}}^1$

素因数の和:2214

約数の個数: 48

約数和(自身を含む): 56347200

約数和(自身を除く): 35700696

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 139, 278, 417, 556, 834, 1112, 1251, 1668, 2063, 2502, 3336, 4126, 5004, 6189, 8252, 10008, 12378, 16504, 18567, 24756, 37134, 49512, 74268, 148536, 286757, 573514, 860271, 1147028, 1720542, 2294056, 2580813, 3441084, 5161626, 6882168, 10323252, 20646504]

約数ペア:

[(1, 20646504), (2, 10323252), (3, 6882168), (4, 5161626), (6, 3441084), (8, 2580813), (9, 2294056), (12, 1720542), (18, 1147028), (24, 860271), (36, 573514), (72, 286757), (139, 148536), (278, 74268), (417, 49512), (556, 37134), (834, 24756), (1112, 18567), (1251, 16504), (1668, 12378), (2063, 10008), (2502, 8252), (3336, 6189), (4126, 5004)]