80481681

素因数分解:

$3^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3301}}^1$

素因数の和:3363

約数の個数: 40

約数和(自身を含む): 140638784

約数和(自身を除く): 60157103

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 81, 129, 189, 301, 387, 567, 903, 1161, 2709, 3301, 3483, 8127, 9903, 23107, 24381, 29709, 69321, 89127, 141943, 207963, 267381, 425829, 623889, 993601, 1277487, 1871667, 2980803, 3832461, 8942409, 11497383, 26827227, 80481681]

約数ペア:

[(1, 80481681), (3, 26827227), (7, 11497383), (9, 8942409), (21, 3832461), (27, 2980803), (43, 1871667), (63, 1277487), (81, 993601), (129, 623889), (189, 425829), (301, 267381), (387, 207963), (567, 141943), (903, 89127), (1161, 69321), (2709, 29709), (3301, 24381), (3483, 23107), (8127, 9903)]