19921449

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{1087}}^1$

素因数の和:1280

約数の個数: 16

約数和(自身を含む): 27417600

約数和(自身を除く): 7496151

約数列:

[1, 3, 41, 123, 149, 447, 1087, 3261, 6109, 18327, 44567, 133701, 161963, 485889, 6640483, 19921449]

約数ペア:

[(1, 19921449), (3, 6640483), (41, 485889), (123, 161963), (149, 133701), (447, 44567), (1087, 18327), (3261, 6109)]