18978267

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2833}}^1$

素因数の和:2883

約数の個数: 32

約数和(自身を含む): 32647680

約数和(自身を除く): 13669413

約数列:

[1, 3, 7, 11, 21, 29, 33, 77, 87, 203, 231, 319, 609, 957, 2233, 2833, 6699, 8499, 19831, 31163, 59493, 82157, 93489, 218141, 246471, 575099, 654423, 903727, 1725297, 2711181, 6326089, 18978267]

約数ペア:

[(1, 18978267), (3, 6326089), (7, 2711181), (11, 1725297), (21, 903727), (29, 654423), (33, 575099), (77, 246471), (87, 218141), (203, 93489), (231, 82157), (319, 59493), (609, 31163), (957, 19831), (2233, 8499), (2833, 6699)]