71838081

素因数分解:

$3^2\times 7^1\times {\mathrm{571}}^1\times {\mathrm{1997}}^1$

素因数の和:2581

約数の個数: 24

約数和(自身を含む): 118857024

約数和(自身を除く): 47018943

約数列:

[1, 3, 7, 9, 21, 63, 571, 1713, 1997, 3997, 5139, 5991, 11991, 13979, 17973, 35973, 41937, 125811, 1140287, 3420861, 7982009, 10262583, 23946027, 71838081]

約数ペア:

[(1, 71838081), (3, 23946027), (7, 10262583), (9, 7982009), (21, 3420861), (63, 1140287), (571, 125811), (1713, 41937), (1997, 35973), (3997, 17973), (5139, 13979), (5991, 11991)]