81631501

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{53}}^1$

素因数の和:170

約数の個数: 36

約数和(自身を含む): 104879772

約数和(自身を除く): 23248271

約数列:

[1, 7, 17, 43, 49, 53, 119, 301, 371, 731, 833, 901, 1849, 2107, 2279, 2597, 5117, 6307, 12943, 15953, 31433, 35819, 38743, 44149, 90601, 97997, 111671, 220031, 271201, 685979, 1540217, 1665949, 1898407, 4801853, 11661643, 81631501]

約数ペア:

[(1, 81631501), (7, 11661643), (17, 4801853), (43, 1898407), (49, 1665949), (53, 1540217), (119, 685979), (301, 271201), (371, 220031), (731, 111671), (833, 97997), (901, 90601), (1849, 44149), (2107, 38743), (2279, 35819), (2597, 31433), (5117, 15953), (6307, 12943)]