208043997

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{709}}^1$

素因数の和:965

約数の個数: 32

約数和(自身を含む): 323078400

約数和(自身を除く): 115034403

約数列:

[1, 3, 7, 21, 89, 157, 267, 471, 623, 709, 1099, 1869, 2127, 3297, 4963, 13973, 14889, 41919, 63101, 97811, 111313, 189303, 293433, 333939, 441707, 779191, 1325121, 2337573, 9906857, 29720571, 69347999, 208043997]

約数ペア:

[(1, 208043997), (3, 69347999), (7, 29720571), (21, 9906857), (89, 2337573), (157, 1325121), (267, 779191), (471, 441707), (623, 333939), (709, 293433), (1099, 189303), (1869, 111313), (2127, 97811), (3297, 63101), (4963, 41919), (13973, 14889)]