21289066

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{8819}}^1$

素因数の和:8909

約数の個数: 16

約数和(自身を含む): 34292160

約数和(自身を除く): 13003094

約数列:

[1, 2, 17, 34, 71, 142, 1207, 2414, 8819, 17638, 149923, 299846, 626149, 1252298, 10644533, 21289066]

約数ペア:

[(1, 21289066), (2, 10644533), (17, 1252298), (34, 626149), (71, 299846), (142, 149923), (1207, 17638), (2414, 8819)]