19729444

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{6841}}^1$

素因数の和:6955

約数の個数: 24

約数和(自身を含む): 39847808

約数和(自身を除く): 20118364

約数列:

[1, 2, 4, 7, 14, 28, 103, 206, 412, 721, 1442, 2884, 6841, 13682, 27364, 47887, 95774, 191548, 704623, 1409246, 2818492, 4932361, 9864722, 19729444]

約数ペア:

[(1, 19729444), (2, 9864722), (4, 4932361), (7, 2818492), (14, 1409246), (28, 704623), (103, 191548), (206, 95774), (412, 47887), (721, 27364), (1442, 13682), (2884, 6841)]