81393949

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{9829}}^1$

素因数の和:9869

約数の個数: 18

約数和(自身を含む): 102536730

約数和(自身を除く): 21142781

約数列:

[1, 7, 13, 49, 91, 169, 637, 1183, 8281, 9829, 68803, 127777, 481621, 894439, 1661101, 6261073, 11627707, 81393949]

約数ペア:

[(1, 81393949), (7, 11627707), (13, 6261073), (49, 1661101), (91, 894439), (169, 481621), (637, 127777), (1183, 68803), (8281, 9829)]