20218507617

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{285101}}^1$

素因数の和:285429

約数の個数: 32

約数和(自身を含む): 33719583744

約数和(自身を除く): 13501076127

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 307, 921, 2149, 3377, 6447, 10131, 23639, 70917, 285101, 855303, 1995707, 3136111, 5987121, 9408333, 21952777, 65858331, 87526007, 262578021, 612682049, 962786077, 1838046147, 2888358231, 6739502539, 20218507617]

約数ペア:

[(1, 20218507617), (3, 6739502539), (7, 2888358231), (11, 1838046147), (21, 962786077), (33, 612682049), (77, 262578021), (231, 87526007), (307, 65858331), (921, 21952777), (2149, 9408333), (3377, 5987121), (6447, 3136111), (10131, 1995707), (23639, 855303), (70917, 285101)]