217151285

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{10343}}^1$

素因数の和:10397

約数の個数: 32

約数和(自身を含む): 312802560

約数和(自身を除く): 95651275

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 221, 247, 323, 1105, 1235, 1615, 4199, 10343, 20995, 51715, 134459, 175831, 196517, 672295, 879155, 982585, 2285803, 2554721, 3340789, 11429015, 12773605, 16703945, 43430257, 217151285]

約数ペア:

[(1, 217151285), (5, 43430257), (13, 16703945), (17, 12773605), (19, 11429015), (65, 3340789), (85, 2554721), (95, 2285803), (221, 982585), (247, 879155), (323, 672295), (1105, 196517), (1235, 175831), (1615, 134459), (4199, 51715), (10343, 20995)]