81157797

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67801}}^1$

素因数の和:67833

約数の個数: 24

約数和(自身を含む): 141028160

約数和(自身を除く): 59870363

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 67801, 203403, 474607, 610209, 1288219, 1423821, 3864657, 4271463, 9017533, 11593971, 27052599, 81157797]

約数ペア:

[(1, 81157797), (3, 27052599), (7, 11593971), (9, 9017533), (19, 4271463), (21, 3864657), (57, 1423821), (63, 1288219), (133, 610209), (171, 474607), (399, 203403), (1197, 67801)]