21787788

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{165059}}^1$

素因数の和:165077

約数の個数: 24

約数和(自身を含む): 55460160

約数和(自身を除く): 33672372

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 165059, 330118, 495177, 660236, 990354, 1815649, 1980708, 3631298, 5446947, 7262596, 10893894, 21787788]

約数ペア:

[(1, 21787788), (2, 10893894), (3, 7262596), (4, 5446947), (6, 3631298), (11, 1980708), (12, 1815649), (22, 990354), (33, 660236), (44, 495177), (66, 330118), (132, 165059)]