18657408

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{631}}^1$

素因数の和:666

約数の個数: 128

約数和(自身を含む): 61885440

約数和(自身を除く): 43228032

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 16, 21, 22, 24, 28, 32, 33, 42, 44, 48, 56, 64, 66, 77, 84, 88, 96, 112, 128, 132, 154, 168, 176, 192, 224, 231, 264, 308, 336, 352, 384, 448, 462, 528, 616, 631, 672, 704, 896, 924, 1056, 1232, 1262, 1344, 1408, 1848, 1893, 2112, 2464, 2524, 2688, 3696, 3786, 4224, 4417, 4928, 5048, 6941, 7392, 7572, 8834, 9856, 10096, 13251, 13882, 14784, 15144, 17668, 20192, 20823, 26502, 27764, 29568, 30288, 35336, 40384, 41646, 48587, 53004, 55528, 60576, 70672, 80768, 83292, 97174, 106008, 111056, 121152, 141344, 145761, 166584, 194348, 212016, 222112, 242304, 282688, 291522, 333168, 388696, 424032, 444224, 565376, 583044, 666336, 777392, 848064, 888448, 1166088, 1332672, 1554784, 1696128, 2332176, 2665344, 3109568, 4664352, 6219136, 9328704, 18657408]

約数ペア:

[(1, 18657408), (2, 9328704), (3, 6219136), (4, 4664352), (6, 3109568), (7, 2665344), (8, 2332176), (11, 1696128), (12, 1554784), (14, 1332672), (16, 1166088), (21, 888448), (22, 848064), (24, 777392), (28, 666336), (32, 583044), (33, 565376), (42, 444224), (44, 424032), (48, 388696), (56, 333168), (64, 291522), (66, 282688), (77, 242304), (84, 222112), (88, 212016), (96, 194348), (112, 166584), (128, 145761), (132, 141344), (154, 121152), (168, 111056), (176, 106008), (192, 97174), (224, 83292), (231, 80768), (264, 70672), (308, 60576), (336, 55528), (352, 53004), (384, 48587), (448, 41646), (462, 40384), (528, 35336), (616, 30288), (631, 29568), (672, 27764), (704, 26502), (896, 20823), (924, 20192), (1056, 17668), (1232, 15144), (1262, 14784), (1344, 13882), (1408, 13251), (1848, 10096), (1893, 9856), (2112, 8834), (2464, 7572), (2524, 7392), (2688, 6941), (3696, 5048), (3786, 4928), (4224, 4417)]