21749714

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{21881}}^1$

素因数の和:21961

約数の個数: 16

約数和(自身を含む): 37812096

約数和(自身を除く): 16062382

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 21881, 43762, 153167, 306334, 1553551, 3107102, 10874857, 21749714]

約数ペア:

[(1, 21749714), (2, 10874857), (7, 3107102), (14, 1553551), (71, 306334), (142, 153167), (497, 43762), (994, 21881)]