21943340

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{11311}}^1$

素因数の和:11417

約数の個数: 24

約数和(自身を含む): 46560192

約数和(自身を除く): 24616852

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 11311, 22622, 45244, 56555, 113110, 226220, 1097167, 2194334, 4388668, 5485835, 10971670, 21943340]

約数ペア:

[(1, 21943340), (2, 10971670), (4, 5485835), (5, 4388668), (10, 2194334), (20, 1097167), (97, 226220), (194, 113110), (388, 56555), (485, 45244), (970, 22622), (1940, 11311)]