216975913

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{5347}}^1$

素因数の和:5413

約数の個数: 32

約数和(自身を含む): 295723008

約数和(自身を除く): 78747095

約数列:

[1, 7, 11, 17, 31, 77, 119, 187, 217, 341, 527, 1309, 2387, 3689, 5347, 5797, 37429, 40579, 58817, 90899, 165757, 411719, 636293, 999889, 1160299, 1823327, 2817869, 6999223, 12763289, 19725083, 30996559, 216975913]

約数ペア:

[(1, 216975913), (7, 30996559), (11, 19725083), (17, 12763289), (31, 6999223), (77, 2817869), (119, 1823327), (187, 1160299), (217, 999889), (341, 636293), (527, 411719), (1309, 165757), (2387, 90899), (3689, 58817), (5347, 40579), (5797, 37429)]