19954503

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1913}}^1$

素因数の和:1999

約数の個数: 24

約数和(自身を含む): 30853680

約数和(自身を除く): 10899177

約数列:

[1, 3, 9, 19, 57, 61, 171, 183, 549, 1159, 1913, 3477, 5739, 10431, 17217, 36347, 109041, 116693, 327123, 350079, 1050237, 2217167, 6651501, 19954503]

約数ペア:

[(1, 19954503), (3, 6651501), (9, 2217167), (19, 1050237), (57, 350079), (61, 327123), (171, 116693), (183, 109041), (549, 36347), (1159, 17217), (1913, 10431), (3477, 5739)]