20351961

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{8731}}^1$

素因数の和:8781

約数の個数: 24

約数和(自身を含む): 34508864

約数和(自身を除く): 14156903

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 8731, 26193, 61117, 78579, 183351, 323047, 550053, 969141, 2261329, 2907423, 6783987, 20351961]

約数ペア:

[(1, 20351961), (3, 6783987), (7, 2907423), (9, 2261329), (21, 969141), (37, 550053), (63, 323047), (111, 183351), (259, 78579), (333, 61117), (777, 26193), (2331, 8731)]