20781954

素因数分解:

$2^1\times 3^3\times {\mathrm{384851}}^1$

素因数の和:384862

約数の個数: 16

約数和(自身を含む): 46182240

約数和(自身を除く): 25400286

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 384851, 769702, 1154553, 2309106, 3463659, 6927318, 10390977, 20781954]

約数ペア:

[(1, 20781954), (2, 10390977), (3, 6927318), (6, 3463659), (9, 2309106), (18, 1154553), (27, 769702), (54, 384851)]