31508919

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1301}}^1$

素因数の和:1349

約数の個数: 40

約数和(自身を含む): 52934112

約数和(自身を除く): 21425193

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 81, 117, 207, 299, 351, 621, 897, 1053, 1301, 1863, 2691, 3903, 8073, 11709, 16913, 24219, 29923, 35127, 50739, 89769, 105381, 152217, 269307, 388999, 456651, 807921, 1166997, 1369953, 2423763, 3500991, 10502973, 31508919]

約数ペア:

[(1, 31508919), (3, 10502973), (9, 3500991), (13, 2423763), (23, 1369953), (27, 1166997), (39, 807921), (69, 456651), (81, 388999), (117, 269307), (207, 152217), (299, 105381), (351, 89769), (621, 50739), (897, 35127), (1053, 29923), (1301, 24219), (1863, 16913), (2691, 11709), (3903, 8073)]