20161971788

素因数分解:

$2^2\times 7^2\times {\mathrm{102867203}}^1$

素因数の和:102867221

約数の個数: 18

約数和(自身を含む): 41044014396

約数和(自身を除く): 20882042608

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 102867203, 205734406, 411468812, 720070421, 1440140842, 2880281684, 5040492947, 10080985894, 20161971788]

約数ペア:

[(1, 20161971788), (2, 10080985894), (4, 5040492947), (7, 2880281684), (14, 1440140842), (28, 720070421), (49, 411468812), (98, 205734406), (196, 102867203)]