80817219

素因数分解:

$3^2\times 7^2\times {\mathrm{183259}}^1$

素因数の和:183279

約数の個数: 18

約数和(自身を含む): 135795660

約数和(自身を除く): 54978441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 183259, 549777, 1282813, 1649331, 3848439, 8979691, 11545317, 26939073, 80817219]

約数ペア:

[(1, 80817219), (3, 26939073), (7, 11545317), (9, 8979691), (21, 3848439), (49, 1649331), (63, 1282813), (147, 549777), (441, 183259)]