19910429

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{2137}}^1$

素因数の和:2177

約数の個数: 16

約数和(自身を含む): 25040256

約数和(自身を除く): 5129827

約数列:

[1, 7, 11, 77, 121, 847, 1331, 2137, 9317, 14959, 23507, 164549, 258577, 1810039, 2844347, 19910429]

約数ペア:

[(1, 19910429), (7, 2844347), (11, 1810039), (77, 258577), (121, 164549), (847, 23507), (1331, 14959), (2137, 9317)]