19011244

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 39384576

約数和(自身を除く): 20373332

約数列:

[1, 2, 4, 7, 14, 28, 71, 73, 131, 142, 146, 262, 284, 292, 497, 511, 524, 917, 994, 1022, 1834, 1988, 2044, 3668, 5183, 9301, 9563, 10366, 18602, 19126, 20732, 36281, 37204, 38252, 65107, 66941, 72562, 130214, 133882, 145124, 260428, 267764, 678973, 1357946, 2715892, 4752811, 9505622, 19011244]

約数ペア:

[(1, 19011244), (2, 9505622), (4, 4752811), (7, 2715892), (14, 1357946), (28, 678973), (71, 267764), (73, 260428), (131, 145124), (142, 133882), (146, 130214), (262, 72562), (284, 66941), (292, 65107), (497, 38252), (511, 37204), (524, 36281), (917, 20732), (994, 19126), (1022, 18602), (1834, 10366), (1988, 9563), (2044, 9301), (3668, 5183)]