71781963

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{15649}}^1$

素因数の和:15802

約数の個数: 16

約数和(自身を含む): 105168000

約数和(自身を除く): 33386037

約数列:

[1, 3, 11, 33, 139, 417, 1529, 4587, 15649, 46947, 172139, 516417, 2175211, 6525633, 23927321, 71781963]

約数ペア:

[(1, 71781963), (3, 23927321), (11, 6525633), (33, 2175211), (139, 516417), (417, 172139), (1529, 46947), (4587, 15649)]