81867387

素因数分解:

$3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{5407}}^1$

素因数の和:5527

約数の個数: 24

約数和(自身を含む): 128234496

約数和(自身を除く): 46367109

約数列:

[1, 3, 7, 21, 49, 103, 147, 309, 721, 2163, 5047, 5407, 15141, 16221, 37849, 113547, 264943, 556921, 794829, 1670763, 3898447, 11695341, 27289129, 81867387]

約数ペア:

[(1, 81867387), (3, 27289129), (7, 11695341), (21, 3898447), (49, 1670763), (103, 794829), (147, 556921), (309, 264943), (721, 113547), (2163, 37849), (5047, 16221), (5407, 15141)]