19866256

素因数分解:

$2^4\times {\mathrm{811}}^1\times {\mathrm{1531}}^1$

素因数の和:2350

約数の個数: 20

約数和(自身を含む): 38563504

約数和(自身を除く): 18697248

約数列:

[1, 2, 4, 8, 16, 811, 1531, 1622, 3062, 3244, 6124, 6488, 12248, 12976, 24496, 1241641, 2483282, 4966564, 9933128, 19866256]

約数ペア:

[(1, 19866256), (2, 9933128), (4, 4966564), (8, 2483282), (16, 1241641), (811, 24496), (1531, 12976), (1622, 12248), (3062, 6488), (3244, 6124)]