71557641

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:211

約数の個数: 64

約数和(自身を含む): 119439360

約数和(自身を除く): 47881719

約数列:

[1, 3, 9, 17, 27, 31, 47, 51, 93, 107, 141, 153, 279, 321, 423, 459, 527, 799, 837, 963, 1269, 1457, 1581, 1819, 2397, 2889, 3317, 4371, 4743, 5029, 5457, 7191, 9951, 13113, 14229, 15087, 16371, 21573, 24769, 29853, 39339, 45261, 49113, 56389, 74307, 85493, 89559, 135783, 155899, 169167, 222921, 256479, 467697, 507501, 668763, 769437, 1403091, 1522503, 2308311, 2650283, 4209273, 7950849, 23852547, 71557641]

約数ペア:

[(1, 71557641), (3, 23852547), (9, 7950849), (17, 4209273), (27, 2650283), (31, 2308311), (47, 1522503), (51, 1403091), (93, 769437), (107, 668763), (141, 507501), (153, 467697), (279, 256479), (321, 222921), (423, 169167), (459, 155899), (527, 135783), (799, 89559), (837, 85493), (963, 74307), (1269, 56389), (1457, 49113), (1581, 45261), (1819, 39339), (2397, 29853), (2889, 24769), (3317, 21573), (4371, 16371), (4743, 15087), (5029, 14229), (5457, 13113), (7191, 9951)]