12840438

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{164621}}^1$

素因数の和:164639

約数の個数: 16

約数和(自身を含む): 27656496

約数和(自身を除く): 14816058

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 164621, 329242, 493863, 987726, 2140073, 4280146, 6420219, 12840438]

約数ペア:

[(1, 12840438), (2, 6420219), (3, 4280146), (6, 2140073), (13, 987726), (26, 493863), (39, 329242), (78, 164621)]