31197771

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1$

素因数の和:241

約数の個数: 64

約数和(自身を含む): 55157760

約数和(自身を除く): 23959989

約数列:

[1, 3, 9, 11, 17, 27, 33, 37, 51, 99, 111, 153, 167, 187, 297, 333, 407, 459, 501, 561, 629, 999, 1221, 1503, 1683, 1837, 1887, 2839, 3663, 4509, 5049, 5511, 5661, 6179, 6919, 8517, 10989, 16533, 16983, 18537, 20757, 25551, 31229, 49599, 55611, 62271, 67969, 76653, 93687, 105043, 166833, 186813, 203907, 281061, 315129, 611721, 843183, 945387, 1155473, 1835163, 2836161, 3466419, 10399257, 31197771]

約数ペア:

[(1, 31197771), (3, 10399257), (9, 3466419), (11, 2836161), (17, 1835163), (27, 1155473), (33, 945387), (37, 843183), (51, 611721), (99, 315129), (111, 281061), (153, 203907), (167, 186813), (187, 166833), (297, 105043), (333, 93687), (407, 76653), (459, 67969), (501, 62271), (561, 55611), (629, 49599), (999, 31229), (1221, 25551), (1503, 20757), (1683, 18537), (1837, 16983), (1887, 16533), (2839, 10989), (3663, 8517), (4509, 6919), (5049, 6179), (5511, 5661)]