20161295

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{7481}}^1$

素因数の和:7511

約数の個数: 24

約数和(自身を含む): 30706128

約数和(自身を除く): 10544833

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 7481, 37405, 52367, 82291, 261835, 366569, 411455, 576037, 1832845, 2880185, 4032259, 20161295]

約数ペア:

[(1, 20161295), (5, 4032259), (7, 2880185), (11, 1832845), (35, 576037), (49, 411455), (55, 366569), (77, 261835), (245, 82291), (385, 52367), (539, 37405), (2695, 7481)]