399221217

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{15259}}^1$

素因数の和:15307

約数の個数: 40

約数和(自身を含む): 664725600

約数和(自身を除く): 265504383

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 81, 153, 171, 323, 459, 513, 969, 1377, 1539, 2907, 8721, 15259, 26163, 45777, 137331, 259403, 289921, 411993, 778209, 869763, 1235979, 2334627, 2609289, 4928657, 7003881, 7827867, 14785971, 21011643, 23483601, 44357913, 133073739, 399221217]

約数ペア:

[(1, 399221217), (3, 133073739), (9, 44357913), (17, 23483601), (19, 21011643), (27, 14785971), (51, 7827867), (57, 7003881), (81, 4928657), (153, 2609289), (171, 2334627), (323, 1235979), (459, 869763), (513, 778209), (969, 411993), (1377, 289921), (1539, 259403), (2907, 137331), (8721, 45777), (15259, 26163)]