81639321

素因数分解:

$3^1\times {\mathrm{17}}^3\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:274

約数の個数: 32

約数和(自身を含む): 120268800

約数和(自身を除く): 38629479

約数列:

[1, 3, 17, 29, 51, 87, 191, 289, 493, 573, 867, 1479, 3247, 4913, 5539, 8381, 9741, 14739, 16617, 25143, 55199, 94163, 142477, 165597, 282489, 427431, 938383, 1600771, 2815149, 4802313, 27213107, 81639321]

約数ペア:

[(1, 81639321), (3, 27213107), (17, 4802313), (29, 2815149), (51, 1600771), (87, 938383), (191, 427431), (289, 282489), (493, 165597), (573, 142477), (867, 94163), (1479, 55199), (3247, 25143), (4913, 16617), (5539, 14739), (8381, 9741)]