18793755

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:481

約数の個数: 64

約数和(自身を含む): 37324800

約数和(自身を除く): 18531045

約数列:

[1, 3, 5, 9, 15, 17, 19, 27, 45, 51, 57, 85, 95, 135, 153, 171, 255, 285, 323, 431, 459, 513, 765, 855, 969, 1293, 1615, 2155, 2295, 2565, 2907, 3879, 4845, 6465, 7327, 8189, 8721, 11637, 14535, 19395, 21981, 24567, 36635, 40945, 43605, 58185, 65943, 73701, 109905, 122835, 139213, 197829, 221103, 329715, 368505, 417639, 696065, 989145, 1105515, 1252917, 2088195, 3758751, 6264585, 18793755]

約数ペア:

[(1, 18793755), (3, 6264585), (5, 3758751), (9, 2088195), (15, 1252917), (17, 1105515), (19, 989145), (27, 696065), (45, 417639), (51, 368505), (57, 329715), (85, 221103), (95, 197829), (135, 139213), (153, 122835), (171, 109905), (255, 73701), (285, 65943), (323, 58185), (431, 43605), (459, 40945), (513, 36635), (765, 24567), (855, 21981), (969, 19395), (1293, 14535), (1615, 11637), (2155, 8721), (2295, 8189), (2565, 7327), (2907, 6465), (3879, 4845)]