21478688

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1$

素因数の和:430

約数の個数: 96

約数和(自身を含む): 55157760

約数和(自身を除く): 33679072

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 23, 28, 32, 44, 46, 56, 77, 88, 92, 112, 154, 161, 176, 184, 224, 253, 308, 322, 352, 368, 379, 506, 616, 644, 736, 758, 1012, 1232, 1288, 1516, 1771, 2024, 2464, 2576, 2653, 3032, 3542, 4048, 4169, 5152, 5306, 6064, 7084, 8096, 8338, 8717, 10612, 12128, 14168, 16676, 17434, 21224, 28336, 29183, 33352, 34868, 42448, 56672, 58366, 61019, 66704, 69736, 84896, 95887, 116732, 122038, 133408, 139472, 191774, 233464, 244076, 278944, 383548, 466928, 488152, 671209, 767096, 933856, 976304, 1342418, 1534192, 1952608, 2684836, 3068384, 5369672, 10739344, 21478688]

約数ペア:

[(1, 21478688), (2, 10739344), (4, 5369672), (7, 3068384), (8, 2684836), (11, 1952608), (14, 1534192), (16, 1342418), (22, 976304), (23, 933856), (28, 767096), (32, 671209), (44, 488152), (46, 466928), (56, 383548), (77, 278944), (88, 244076), (92, 233464), (112, 191774), (154, 139472), (161, 133408), (176, 122038), (184, 116732), (224, 95887), (253, 84896), (308, 69736), (322, 66704), (352, 61019), (368, 58366), (379, 56672), (506, 42448), (616, 34868), (644, 33352), (736, 29183), (758, 28336), (1012, 21224), (1232, 17434), (1288, 16676), (1516, 14168), (1771, 12128), (2024, 10612), (2464, 8717), (2576, 8338), (2653, 8096), (3032, 7084), (3542, 6064), (4048, 5306), (4169, 5152)]