12897811981

素因数分解:

${\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1\times {\mathrm{389}}^1$

素因数の和:805

約数の個数: 32

約数和(自身を含む): 13874365440

約数和(自身を除く): 976553459

約数列:

[1, 31, 37, 137, 211, 389, 1147, 4247, 5069, 6541, 7807, 12059, 14393, 28907, 53293, 82079, 157139, 242017, 446183, 896117, 1069559, 1652083, 1971841, 2544449, 3036923, 11244823, 33156329, 61127071, 94144613, 348589513, 416058451, 12897811981]

約数ペア:

[(1, 12897811981), (31, 416058451), (37, 348589513), (137, 94144613), (211, 61127071), (389, 33156329), (1147, 11244823), (4247, 3036923), (5069, 2544449), (6541, 1971841), (7807, 1652083), (12059, 1069559), (14393, 896117), (28907, 446183), (53293, 242017), (82079, 157139)]