19723145

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1373}}^1$

素因数の和:1421

約数の個数: 24

約数和(自身を含む): 27155736

約数和(自身を除く): 7432591

約数列:

[1, 5, 13, 17, 65, 85, 169, 221, 845, 1105, 1373, 2873, 6865, 14365, 17849, 23341, 89245, 116705, 232037, 303433, 1160185, 1517165, 3944629, 19723145]

約数ペア:

[(1, 19723145), (5, 3944629), (13, 1517165), (17, 1160185), (65, 303433), (85, 232037), (169, 116705), (221, 89245), (845, 23341), (1105, 17849), (1373, 14365), (2873, 6865)]