31185783

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:149

約数の個数: 64

約数和(自身を含む): 52531200

約数和(自身を除く): 21345417

約数列:

[1, 3, 9, 19, 27, 31, 37, 53, 57, 93, 111, 159, 171, 279, 333, 477, 513, 589, 703, 837, 999, 1007, 1147, 1431, 1643, 1767, 1961, 2109, 3021, 3441, 4929, 5301, 5883, 6327, 9063, 10323, 14787, 15903, 17649, 18981, 21793, 27189, 30969, 31217, 37259, 44361, 52947, 60791, 65379, 93651, 111777, 182373, 196137, 280953, 335331, 547119, 588411, 842859, 1005993, 1155029, 1641357, 3465087, 10395261, 31185783]

約数ペア:

[(1, 31185783), (3, 10395261), (9, 3465087), (19, 1641357), (27, 1155029), (31, 1005993), (37, 842859), (53, 588411), (57, 547119), (93, 335331), (111, 280953), (159, 196137), (171, 182373), (279, 111777), (333, 93651), (477, 65379), (513, 60791), (589, 52947), (703, 44361), (837, 37259), (999, 31217), (1007, 30969), (1147, 27189), (1431, 21793), (1643, 18981), (1767, 17649), (1961, 15903), (2109, 14787), (3021, 10323), (3441, 9063), (4929, 6327), (5301, 5883)]