8720397

素因数分解:

$3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1427}}^1$

素因数の和:1537

約数の個数: 24

約数和(自身を含む): 14554176

約数和(自身を除く): 5833779

約数列:

[1, 3, 7, 9, 21, 63, 97, 291, 679, 873, 1427, 2037, 4281, 6111, 9989, 12843, 29967, 89901, 138419, 415257, 968933, 1245771, 2906799, 8720397]

約数ペア:

[(1, 8720397), (3, 2906799), (7, 1245771), (9, 968933), (21, 415257), (63, 138419), (97, 89901), (291, 29967), (679, 12843), (873, 9989), (1427, 6111), (2037, 4281)]