19997383887

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1512547}}^1$

素因数の和:1512679

約数の個数: 24

約数和(自身を含む): 31382345904

約数和(自身を除く): 11384962017

約数列:

[1, 3, 9, 13, 39, 113, 117, 339, 1017, 1469, 4407, 13221, 1512547, 4537641, 13612923, 19663111, 58989333, 170917811, 176967999, 512753433, 1538260299, 2221931543, 6665794629, 19997383887]

約数ペア:

[(1, 19997383887), (3, 6665794629), (9, 2221931543), (13, 1538260299), (39, 512753433), (113, 176967999), (117, 170917811), (339, 58989333), (1017, 19663111), (1469, 13612923), (4407, 4537641), (13221, 1512547)]