18955521

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8527}}^1$

素因数の和:8565

約数の個数: 24

約数和(自身を含む): 31041920

約数和(自身を除く): 12086399

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 8527, 25581, 76743, 110851, 162013, 332553, 486039, 997659, 1458117, 2106169, 6318507, 18955521]

約数ペア:

[(1, 18955521), (3, 6318507), (9, 2106169), (13, 1458117), (19, 997659), (39, 486039), (57, 332553), (117, 162013), (171, 110851), (247, 76743), (741, 25581), (2223, 8527)]