247720893

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{6691}}^1$

素因数の和:6785

約数の個数: 32

約数和(自身を含む): 395738112

約数和(自身を除く): 148017219

約数列:

[1, 3, 7, 21, 41, 43, 123, 129, 287, 301, 861, 903, 1763, 5289, 6691, 12341, 20073, 37023, 46837, 140511, 274331, 287713, 822993, 863139, 1920317, 2013991, 5760951, 6041973, 11796233, 35388699, 82573631, 247720893]

約数ペア:

[(1, 247720893), (3, 82573631), (7, 35388699), (21, 11796233), (41, 6041973), (43, 5760951), (123, 2013991), (129, 1920317), (287, 863139), (301, 822993), (861, 287713), (903, 274331), (1763, 140511), (5289, 46837), (6691, 37023), (12341, 20073)]