239214123

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:193

約数の個数: 72

約数和(自身を含む): 397983456

約数和(自身を除く): 158769333

約数列:

[1, 3, 9, 17, 19, 51, 57, 61, 71, 153, 171, 183, 213, 323, 361, 549, 639, 969, 1037, 1083, 1159, 1207, 1349, 2907, 3111, 3249, 3477, 3621, 4047, 4331, 6137, 9333, 10431, 10863, 12141, 12993, 18411, 19703, 22021, 22933, 25631, 38979, 55233, 59109, 66063, 68799, 73627, 76893, 82289, 177327, 198189, 206397, 220881, 230679, 246867, 374357, 435727, 662643, 740601, 1123071, 1307181, 1398913, 1563491, 3369213, 3921543, 4196739, 4690473, 12590217, 14071419, 26579347, 79738041, 239214123]

約数ペア:

[(1, 239214123), (3, 79738041), (9, 26579347), (17, 14071419), (19, 12590217), (51, 4690473), (57, 4196739), (61, 3921543), (71, 3369213), (153, 1563491), (171, 1398913), (183, 1307181), (213, 1123071), (323, 740601), (361, 662643), (549, 435727), (639, 374357), (969, 246867), (1037, 230679), (1083, 220881), (1159, 206397), (1207, 198189), (1349, 177327), (2907, 82289), (3111, 76893), (3249, 73627), (3477, 68799), (3621, 66063), (4047, 59109), (4331, 55233), (6137, 38979), (9333, 25631), (10431, 22933), (10863, 22021), (12141, 19703), (12993, 18411)]