18996836

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{2731}}^1$

素因数の和:2819

約数の個数: 24

約数和(自身を含む): 34882176

約数和(自身を除く): 15885340

約数列:

[1, 2, 4, 37, 47, 74, 94, 148, 188, 1739, 2731, 3478, 5462, 6956, 10924, 101047, 128357, 202094, 256714, 404188, 513428, 4749209, 9498418, 18996836]

約数ペア:

[(1, 18996836), (2, 9498418), (4, 4749209), (37, 513428), (47, 404188), (74, 256714), (94, 202094), (148, 128357), (188, 101047), (1739, 10924), (2731, 6956), (3478, 5462)]