78689619

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{1993}}^1$

素因数の和:2147

約数の個数: 24

約数和(自身を含む): 117582192

約数和(自身を除く): 38892573

約数列:

[1, 3, 9, 41, 107, 123, 321, 369, 963, 1993, 4387, 5979, 13161, 17937, 39483, 81713, 213251, 245139, 639753, 735417, 1919259, 8743291, 26229873, 78689619]

約数ペア:

[(1, 78689619), (3, 26229873), (9, 8743291), (41, 1919259), (107, 735417), (123, 639753), (321, 245139), (369, 213251), (963, 81713), (1993, 39483), (4387, 17937), (5979, 13161)]