18986908

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{1871}}^1$

素因数の和:1977

約数の個数: 24

約数和(自身を含む): 34594560

約数和(自身を除く): 15607652

約数列:

[1, 2, 4, 43, 59, 86, 118, 172, 236, 1871, 2537, 3742, 5074, 7484, 10148, 80453, 110389, 160906, 220778, 321812, 441556, 4746727, 9493454, 18986908]

約数ペア:

[(1, 18986908), (2, 9493454), (4, 4746727), (43, 441556), (59, 321812), (86, 220778), (118, 160906), (172, 110389), (236, 80453), (1871, 10148), (2537, 7484), (3742, 5074)]