81028997

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{761}}^1$

素因数の和:869

約数の個数: 24

約数和(自身を含む): 98508312

約数和(自身を除く): 17479315

約数列:

[1, 7, 41, 49, 53, 287, 371, 761, 2009, 2173, 2597, 5327, 15211, 31201, 37289, 40333, 106477, 218407, 282331, 1528849, 1653653, 1976317, 11575571, 81028997]

約数ペア:

[(1, 81028997), (7, 11575571), (41, 1976317), (49, 1653653), (53, 1528849), (287, 282331), (371, 218407), (761, 106477), (2009, 40333), (2173, 37289), (2597, 31201), (5327, 15211)]