217640157

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{8311}}^1$

素因数の和:8393

約数の個数: 32

約数和(自身を含む): 351098880

約数和(自身を除く): 133458723

約数列:

[1, 3, 7, 21, 29, 43, 87, 129, 203, 301, 609, 903, 1247, 3741, 8311, 8729, 24933, 26187, 58177, 174531, 241019, 357373, 723057, 1072119, 1687133, 2501611, 5061399, 7504833, 10363817, 31091451, 72546719, 217640157]

約数ペア:

[(1, 217640157), (3, 72546719), (7, 31091451), (21, 10363817), (29, 7504833), (43, 5061399), (87, 2501611), (129, 1687133), (203, 1072119), (301, 723057), (609, 357373), (903, 241019), (1247, 174531), (3741, 58177), (8311, 26187), (8729, 24933)]