20914131

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{8369}}^1$

素因数の和:8403

約数の個数: 24

約数和(自身を含む): 34350480

約数和(自身を除く): 13436349

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 8369, 25107, 58583, 142273, 175749, 410081, 426819, 995911, 1230243, 2987733, 6971377, 20914131]

約数ペア:

[(1, 20914131), (3, 6971377), (7, 2987733), (17, 1230243), (21, 995911), (49, 426819), (51, 410081), (119, 175749), (147, 142273), (357, 58583), (833, 25107), (2499, 8369)]