20388618

素因数分解:

$2^1\times 3^3\times {\mathrm{83}}^1\times {\mathrm{4549}}^1$

素因数の和:4643

約数の個数: 32

約数和(自身を含む): 45864000

約数和(自身を除く): 25475382

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 83, 166, 249, 498, 747, 1494, 2241, 4482, 4549, 9098, 13647, 27294, 40941, 81882, 122823, 245646, 377567, 755134, 1132701, 2265402, 3398103, 6796206, 10194309, 20388618]

約数ペア:

[(1, 20388618), (2, 10194309), (3, 6796206), (6, 3398103), (9, 2265402), (18, 1132701), (27, 755134), (54, 377567), (83, 245646), (166, 122823), (249, 81882), (498, 40941), (747, 27294), (1494, 13647), (2241, 9098), (4482, 4549)]