81586813

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{4091}}^1$

素因数の和:4153

約数の個数: 24

約数和(自身を含む): 106359264

約数和(自身を除く): 24772451

約数列:

[1, 7, 11, 37, 49, 77, 259, 407, 539, 1813, 2849, 4091, 19943, 28637, 45001, 151367, 200459, 315007, 1059569, 1665037, 2205049, 7416983, 11655259, 81586813]

約数ペア:

[(1, 81586813), (7, 11655259), (11, 7416983), (37, 2205049), (49, 1665037), (77, 1059569), (259, 315007), (407, 200459), (539, 151367), (1813, 45001), (2849, 28637), (4091, 19943)]