19318221

素因数分解:

$3^2\times {\mathrm{13}}^3\times {\mathrm{977}}^1$

素因数の和:1022

約数の個数: 24

約数和(自身を含む): 30259320

約数和(自身を除く): 10941099

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 977, 1521, 2197, 2931, 6591, 8793, 12701, 19773, 38103, 114309, 165113, 495339, 1486017, 2146469, 6439407, 19318221]

約数ペア:

[(1, 19318221), (3, 6439407), (9, 2146469), (13, 1486017), (39, 495339), (117, 165113), (169, 114309), (507, 38103), (977, 19773), (1521, 12701), (2197, 8793), (2931, 6591)]