20091911

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{3083}}^1$

素因数の和:3123

約数の個数: 16

約数和(自身を含む): 24672000

約数和(自身を除く): 4580089

約数列:

[1, 7, 19, 49, 133, 343, 931, 3083, 6517, 21581, 58577, 151067, 410039, 1057469, 2870273, 20091911]

約数ペア:

[(1, 20091911), (7, 2870273), (19, 1057469), (49, 410039), (133, 151067), (343, 58577), (931, 21581), (3083, 6517)]