18699128

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4703}}^1$

素因数の和:4787

約数の個数: 32

約数和(自身を含む): 40642560

約数和(自身を除く): 21943432

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 4703, 9406, 18812, 32921, 37624, 65842, 131684, 263368, 333913, 667826, 1335652, 2337391, 2671304, 4674782, 9349564, 18699128]

約数ペア:

[(1, 18699128), (2, 9349564), (4, 4674782), (7, 2671304), (8, 2337391), (14, 1335652), (28, 667826), (56, 333913), (71, 263368), (142, 131684), (284, 65842), (497, 37624), (568, 32921), (994, 18812), (1988, 9406), (3976, 4703)]