28095561

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{547}}^1$

素因数の和:1005

約数の個数: 24

約数和(自身を含む): 43883840

約数和(自身を除く): 15788279

約数列:

[1, 3, 9, 13, 39, 117, 439, 547, 1317, 1641, 3951, 4923, 5707, 7111, 17121, 21333, 51363, 63999, 240133, 720399, 2161197, 3121729, 9365187, 28095561]

約数ペア:

[(1, 28095561), (3, 9365187), (9, 3121729), (13, 2161197), (39, 720399), (117, 240133), (439, 63999), (547, 51363), (1317, 21333), (1641, 17121), (3951, 7111), (4923, 5707)]