21556559727

素因数分解:

$3^4\times {\mathrm{109}}^1\times {\mathrm{2441563}}^1$

素因数の和:2441684

約数の個数: 20

約数和(自身を含む): 32497216840

約数和(自身を除く): 10940657113

約数列:

[1, 3, 9, 27, 81, 109, 327, 981, 2943, 8829, 2441563, 7324689, 21974067, 65922201, 197766603, 266130367, 798391101, 2395173303, 7185519909, 21556559727]

約数ペア:

[(1, 21556559727), (3, 7185519909), (9, 2395173303), (27, 798391101), (81, 266130367), (109, 197766603), (327, 65922201), (981, 21974067), (2943, 7324689), (8829, 2441563)]