18715892

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{859}}^1$

素因数の和:1295

約数の個数: 24

約数和(自身を含む): 35397600

約数和(自身を除く): 16681708

約数列:

[1, 2, 4, 13, 26, 52, 419, 838, 859, 1676, 1718, 3436, 5447, 10894, 11167, 21788, 22334, 44668, 359921, 719842, 1439684, 4678973, 9357946, 18715892]

約数ペア:

[(1, 18715892), (2, 9357946), (4, 4678973), (13, 1439684), (26, 719842), (52, 359921), (419, 44668), (838, 22334), (859, 21788), (1676, 11167), (1718, 10894), (3436, 5447)]