51840438

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{664621}}^1$

素因数の和:664639

約数の個数: 16

約数和(自身を含む): 111656496

約数和(自身を除く): 59816058

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 664621, 1329242, 1993863, 3987726, 8640073, 17280146, 25920219, 51840438]

約数ペア:

[(1, 51840438), (2, 25920219), (3, 17280146), (6, 8640073), (13, 3987726), (26, 1993863), (39, 1329242), (78, 664621)]