20838447

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19457}}^1$

素因数の和:19487

約数の個数: 24

約数和(自身を含む): 36425376

約数和(自身を除く): 15586929

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 19457, 58371, 136199, 175113, 330769, 408597, 992307, 1225791, 2315383, 2976921, 6946149, 20838447]

約数ペア:

[(1, 20838447), (3, 6946149), (7, 2976921), (9, 2315383), (17, 1225791), (21, 992307), (51, 408597), (63, 330769), (119, 175113), (153, 136199), (357, 58371), (1071, 19457)]