16821238

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{19697}}^1$

素因数の和:19767

約数の個数: 16

約数和(自身を含む): 29310624

約数和(自身を除く): 12489386

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 19697, 39394, 137879, 275758, 1201517, 2403034, 8410619, 16821238]

約数ペア:

[(1, 16821238), (2, 8410619), (7, 2403034), (14, 1201517), (61, 275758), (122, 137879), (427, 39394), (854, 19697)]