18813135

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 36702720

約数和(自身を除く): 17889585

約数列:

[1, 3, 5, 11, 15, 17, 19, 33, 51, 55, 57, 85, 95, 165, 187, 209, 255, 285, 323, 353, 561, 627, 935, 969, 1045, 1059, 1615, 1765, 2805, 3135, 3553, 3883, 4845, 5295, 6001, 6707, 10659, 11649, 17765, 18003, 19415, 20121, 30005, 33535, 53295, 58245, 66011, 73777, 90015, 100605, 114019, 198033, 221331, 330055, 342057, 368885, 570095, 990165, 1106655, 1254209, 1710285, 3762627, 6271045, 18813135]

約数ペア:

[(1, 18813135), (3, 6271045), (5, 3762627), (11, 1710285), (15, 1254209), (17, 1106655), (19, 990165), (33, 570095), (51, 368885), (55, 342057), (57, 330055), (85, 221331), (95, 198033), (165, 114019), (187, 100605), (209, 90015), (255, 73777), (285, 66011), (323, 58245), (353, 53295), (561, 33535), (627, 30005), (935, 20121), (969, 19415), (1045, 18003), (1059, 17765), (1615, 11649), (1765, 10659), (2805, 6707), (3135, 6001), (3553, 5295), (3883, 4845)]