18938478

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{983}}^1$

素因数の和:1033

約数の個数: 48

約数和(自身を含む): 43217280

約数和(自身を除く): 24278802

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 78, 114, 169, 247, 338, 494, 507, 741, 983, 1014, 1482, 1966, 2949, 3211, 5898, 6422, 9633, 12779, 18677, 19266, 25558, 37354, 38337, 56031, 76674, 112062, 166127, 242801, 332254, 485602, 498381, 728403, 996762, 1456806, 3156413, 6312826, 9469239, 18938478]

約数ペア:

[(1, 18938478), (2, 9469239), (3, 6312826), (6, 3156413), (13, 1456806), (19, 996762), (26, 728403), (38, 498381), (39, 485602), (57, 332254), (78, 242801), (114, 166127), (169, 112062), (247, 76674), (338, 56031), (494, 38337), (507, 37354), (741, 25558), (983, 19266), (1014, 18677), (1482, 12779), (1966, 9633), (2949, 6422), (3211, 5898)]