19865356

素因数分解:

$2^2\times 7^1\times {\mathrm{307}}^1\times {\mathrm{2311}}^1$

素因数の和:2629

約数の個数: 24

約数和(自身を含む): 39877376

約数和(自身を除く): 20012020

約数列:

[1, 2, 4, 7, 14, 28, 307, 614, 1228, 2149, 2311, 4298, 4622, 8596, 9244, 16177, 32354, 64708, 709477, 1418954, 2837908, 4966339, 9932678, 19865356]

約数ペア:

[(1, 19865356), (2, 9932678), (4, 4966339), (7, 2837908), (14, 1418954), (28, 709477), (307, 64708), (614, 32354), (1228, 16177), (2149, 9244), (2311, 8596), (4298, 4622)]