208344591

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{254389}}^1$

素因数の和:254415

約数の個数: 24

約数和(自身を含む): 370391840

約数和(自身を除く): 162047249

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 254389, 763167, 1780723, 2289501, 3307057, 5342169, 9921171, 16026507, 23149399, 29763513, 69448197, 208344591]

約数ペア:

[(1, 208344591), (3, 69448197), (7, 29763513), (9, 23149399), (13, 16026507), (21, 9921171), (39, 5342169), (63, 3307057), (91, 2289501), (117, 1780723), (273, 763167), (819, 254389)]