18997264

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1$

素因数の和:93

約数の個数: 120

約数和(自身を含む): 47621952

約数和(自身を除く): 28624688

約数列:

[1, 2, 4, 8, 11, 13, 16, 19, 22, 23, 26, 38, 44, 46, 52, 76, 88, 92, 104, 143, 152, 176, 184, 208, 209, 247, 253, 286, 299, 304, 361, 368, 418, 437, 494, 506, 572, 598, 722, 836, 874, 988, 1012, 1144, 1196, 1444, 1672, 1748, 1976, 2024, 2288, 2392, 2717, 2888, 3289, 3344, 3496, 3952, 3971, 4048, 4693, 4784, 4807, 5434, 5681, 5776, 6578, 6992, 7942, 8303, 9386, 9614, 10868, 11362, 13156, 15884, 16606, 18772, 19228, 21736, 22724, 26312, 31768, 33212, 37544, 38456, 43472, 45448, 51623, 52624, 62491, 63536, 66424, 75088, 76912, 90896, 91333, 103246, 107939, 124982, 132848, 182666, 206492, 215878, 249964, 365332, 412984, 431756, 499928, 730664, 825968, 863512, 999856, 1187329, 1461328, 1727024, 2374658, 4749316, 9498632, 18997264]

約数ペア:

[(1, 18997264), (2, 9498632), (4, 4749316), (8, 2374658), (11, 1727024), (13, 1461328), (16, 1187329), (19, 999856), (22, 863512), (23, 825968), (26, 730664), (38, 499928), (44, 431756), (46, 412984), (52, 365332), (76, 249964), (88, 215878), (92, 206492), (104, 182666), (143, 132848), (152, 124982), (176, 107939), (184, 103246), (208, 91333), (209, 90896), (247, 76912), (253, 75088), (286, 66424), (299, 63536), (304, 62491), (361, 52624), (368, 51623), (418, 45448), (437, 43472), (494, 38456), (506, 37544), (572, 33212), (598, 31768), (722, 26312), (836, 22724), (874, 21736), (988, 19228), (1012, 18772), (1144, 16606), (1196, 15884), (1444, 13156), (1672, 11362), (1748, 10868), (1976, 9614), (2024, 9386), (2288, 8303), (2392, 7942), (2717, 6992), (2888, 6578), (3289, 5776), (3344, 5681), (3496, 5434), (3952, 4807), (3971, 4784), (4048, 4693)]