8391843

素因数分解:

$3^4\times {\mathrm{313}}^1\times {\mathrm{331}}^1$

素因数の和:656

約数の個数: 20

約数和(自身を含む): 12614008

約数和(自身を除く): 4222165

約数列:

[1, 3, 9, 27, 81, 313, 331, 939, 993, 2817, 2979, 8451, 8937, 25353, 26811, 103603, 310809, 932427, 2797281, 8391843]

約数ペア:

[(1, 8391843), (3, 2797281), (9, 932427), (27, 310809), (81, 103603), (313, 26811), (331, 25353), (939, 8937), (993, 8451), (2817, 2979)]