81278197

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{81197}}^1$

素因数の和:81228

約数の個数: 16

約数和(自身を含む): 109130112

約数和(自身を除く): 27851915

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 81197, 568379, 893167, 1055561, 6252169, 7388927, 11611171, 81278197]

約数ペア:

[(1, 81278197), (7, 11611171), (11, 7388927), (13, 6252169), (77, 1055561), (91, 893167), (143, 568379), (1001, 81197)]