19918948

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{17351}}^1$

素因数の和:17403

約数の個数: 24

約数和(自身を含む): 40811904

約数和(自身を除く): 20892956

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 17351, 34702, 69404, 121457, 242914, 485828, 711391, 1422782, 2845564, 4979737, 9959474, 19918948]

約数ペア:

[(1, 19918948), (2, 9959474), (4, 4979737), (7, 2845564), (14, 1422782), (28, 711391), (41, 485828), (82, 242914), (164, 121457), (287, 69404), (574, 34702), (1148, 17351)]