21672680

素因数分解:

$2^3\times 5^1\times {\mathrm{541817}}^1$

素因数の和:541828

約数の個数: 16

約数和(自身を含む): 48763620

約数和(自身を除く): 27090940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 541817, 1083634, 2167268, 2709085, 4334536, 5418170, 10836340, 21672680]

約数ペア:

[(1, 21672680), (2, 10836340), (4, 5418170), (5, 4334536), (8, 2709085), (10, 2167268), (20, 1083634), (40, 541817)]