19897866

素因数分解:

$2^1\times 3^3\times {\mathrm{157}}^1\times {\mathrm{2347}}^1$

素因数の和:2515

約数の個数: 32

約数和(自身を含む): 44518080

約数和(自身を除く): 24620214

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 157, 314, 471, 942, 1413, 2347, 2826, 4239, 4694, 7041, 8478, 14082, 21123, 42246, 63369, 126738, 368479, 736958, 1105437, 2210874, 3316311, 6632622, 9948933, 19897866]

約数ペア:

[(1, 19897866), (2, 9948933), (3, 6632622), (6, 3316311), (9, 2210874), (18, 1105437), (27, 736958), (54, 368479), (157, 126738), (314, 63369), (471, 42246), (942, 21123), (1413, 14082), (2347, 8478), (2826, 7041), (4239, 4694)]