20277719

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2213}}^1$

素因数の和:2255

約数の個数: 24

約数和(自身を含む): 27258768

約数和(自身を除く): 6981049

約数列:

[1, 7, 11, 17, 49, 77, 119, 187, 539, 833, 1309, 2213, 9163, 15491, 24343, 37621, 108437, 170401, 263347, 413831, 1192807, 1843429, 2896817, 20277719]

約数ペア:

[(1, 20277719), (7, 2896817), (11, 1843429), (17, 1192807), (49, 413831), (77, 263347), (119, 170401), (187, 108437), (539, 37621), (833, 24343), (1309, 15491), (2213, 9163)]