81427294

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{421}}^1$

素因数の和:652

約数の個数: 32

約数和(自身を含む): 135694944

約数和(自身を除く): 54267650

約数列:

[1, 2, 13, 26, 43, 86, 173, 346, 421, 559, 842, 1118, 2249, 4498, 5473, 7439, 10946, 14878, 18103, 36206, 72833, 96707, 145666, 193414, 235339, 470678, 946829, 1893658, 3131819, 6263638, 40713647, 81427294]

約数ペア:

[(1, 81427294), (2, 40713647), (13, 6263638), (26, 3131819), (43, 1893658), (86, 946829), (173, 470678), (346, 235339), (421, 193414), (559, 145666), (842, 96707), (1118, 72833), (2249, 36206), (4498, 18103), (5473, 14878), (7439, 10946)]