81531218

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1\times {\mathrm{307}}^1$

素因数の和:506

約数の個数: 32

約数和(自身を含む): 132922944

約数和(自身を除く): 51391726

約数列:

[1, 2, 17, 34, 73, 107, 146, 214, 307, 614, 1241, 1819, 2482, 3638, 5219, 7811, 10438, 15622, 22411, 32849, 44822, 65698, 132787, 265574, 380987, 558433, 761974, 1116866, 2397977, 4795954, 40765609, 81531218]

約数ペア:

[(1, 81531218), (2, 40765609), (17, 4795954), (34, 2397977), (73, 1116866), (107, 761974), (146, 558433), (214, 380987), (307, 265574), (614, 132787), (1241, 65698), (1819, 44822), (2482, 32849), (3638, 22411), (5219, 15622), (7811, 10438)]