20015307

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{347}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 34201440

約数和(自身を除く): 14186133

約数列:

[1, 3, 9, 13, 17, 29, 39, 51, 87, 117, 153, 221, 261, 347, 377, 493, 663, 1041, 1131, 1479, 1989, 3123, 3393, 4437, 4511, 5899, 6409, 10063, 13533, 17697, 19227, 30189, 40599, 53091, 57681, 76687, 90567, 130819, 171071, 230061, 392457, 513213, 690183, 1177371, 1539639, 2223923, 6671769, 20015307]

約数ペア:

[(1, 20015307), (3, 6671769), (9, 2223923), (13, 1539639), (17, 1177371), (29, 690183), (39, 513213), (51, 392457), (87, 230061), (117, 171071), (153, 130819), (221, 90567), (261, 76687), (347, 57681), (377, 53091), (493, 40599), (663, 30189), (1041, 19227), (1131, 17697), (1479, 13533), (1989, 10063), (3123, 6409), (3393, 5899), (4437, 4511)]