21777497

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{1789}}^1$

素因数の和:1880

約数の個数: 16

約数和(自身を含む): 26119680

約数和(自身を除く): 4342183

約数列:

[1, 7, 37, 47, 259, 329, 1739, 1789, 12173, 12523, 66193, 84083, 463351, 588581, 3111071, 21777497]

約数ペア:

[(1, 21777497), (7, 3111071), (37, 588581), (47, 463351), (259, 84083), (329, 66193), (1739, 12523), (1789, 12173)]