21491696

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{11887}}^1$

素因数の和:12008

約数の個数: 20

約数和(自身を含む): 42012192

約数和(自身を除く): 20520496

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 11887, 23774, 47548, 95096, 190192, 1343231, 2686462, 5372924, 10745848, 21491696]

約数ペア:

[(1, 21491696), (2, 10745848), (4, 5372924), (8, 2686462), (16, 1343231), (113, 190192), (226, 95096), (452, 47548), (904, 23774), (1808, 11887)]