19385757

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:135

約数の個数: 64

約数和(自身を含む): 33177600

約数和(自身を除く): 13791843

約数列:

[1, 3, 9, 19, 23, 27, 31, 53, 57, 69, 93, 159, 171, 207, 279, 437, 477, 513, 589, 621, 713, 837, 1007, 1219, 1311, 1431, 1643, 1767, 2139, 3021, 3657, 3933, 4929, 5301, 6417, 9063, 10971, 11799, 13547, 14787, 15903, 19251, 23161, 27189, 31217, 32913, 37789, 40641, 44361, 69483, 93651, 113367, 121923, 208449, 280953, 340101, 365769, 625347, 717991, 842859, 1020303, 2153973, 6461919, 19385757]

約数ペア:

[(1, 19385757), (3, 6461919), (9, 2153973), (19, 1020303), (23, 842859), (27, 717991), (31, 625347), (53, 365769), (57, 340101), (69, 280953), (93, 208449), (159, 121923), (171, 113367), (207, 93651), (279, 69483), (437, 44361), (477, 40641), (513, 37789), (589, 32913), (621, 31217), (713, 27189), (837, 23161), (1007, 19251), (1219, 15903), (1311, 14787), (1431, 13547), (1643, 11799), (1767, 10971), (2139, 9063), (3021, 6417), (3657, 5301), (3933, 4929)]