18878678

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2207}}^1$

素因数の和:2276

約数の個数: 32

約数和(自身を含む): 35610624

約数和(自身を除く): 16731946

約数列:

[1, 2, 7, 13, 14, 26, 47, 91, 94, 182, 329, 611, 658, 1222, 2207, 4277, 4414, 8554, 15449, 28691, 30898, 57382, 103729, 200837, 207458, 401674, 726103, 1348477, 1452206, 2696954, 9439339, 18878678]

約数ペア:

[(1, 18878678), (2, 9439339), (7, 2696954), (13, 1452206), (14, 1348477), (26, 726103), (47, 401674), (91, 207458), (94, 200837), (182, 103729), (329, 57382), (611, 30898), (658, 28691), (1222, 15449), (2207, 8554), (4277, 4414)]