71951187

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 125411328

約数和(自身を除く): 53460141

約数列:

[1, 3, 7, 11, 21, 33, 41, 71, 77, 107, 123, 213, 231, 287, 321, 451, 497, 749, 781, 861, 1177, 1353, 1491, 2247, 2343, 2911, 3157, 3531, 4387, 5467, 7597, 8239, 8733, 9471, 13161, 16401, 20377, 22791, 24717, 30709, 32021, 48257, 53179, 61131, 83567, 92127, 96063, 144771, 159537, 224147, 250701, 311477, 337799, 584969, 672441, 934431, 1013397, 1754907, 2180339, 3426247, 6541017, 10278741, 23983729, 71951187]

約数ペア:

[(1, 71951187), (3, 23983729), (7, 10278741), (11, 6541017), (21, 3426247), (33, 2180339), (41, 1754907), (71, 1013397), (77, 934431), (107, 672441), (123, 584969), (213, 337799), (231, 311477), (287, 250701), (321, 224147), (451, 159537), (497, 144771), (749, 96063), (781, 92127), (861, 83567), (1177, 61131), (1353, 53179), (1491, 48257), (2247, 32021), (2343, 30709), (2911, 24717), (3157, 22791), (3531, 20377), (4387, 16401), (5467, 13161), (7597, 9471), (8239, 8733)]