21320546

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43159}}^1$

素因数の和:43193

約数の個数: 16

約数和(自身を含む): 36254400

約数和(自身を除く): 14933854

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 43159, 86318, 561067, 820021, 1122134, 1640042, 10660273, 21320546]

約数ペア:

[(1, 21320546), (2, 10660273), (13, 1640042), (19, 1122134), (26, 820021), (38, 561067), (247, 86318), (494, 43159)]