21119378

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{40771}}^1$

素因数の和:40817

約数の個数: 16

約数和(自身を含む): 37184064

約数和(自身を除く): 16064686

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 40771, 81542, 285397, 570794, 1508527, 3017054, 10559689, 21119378]

約数ペア:

[(1, 21119378), (2, 10559689), (7, 3017054), (14, 1508527), (37, 570794), (74, 285397), (259, 81542), (518, 40771)]