21180768

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{733}}^1$

素因数の和:796

約数の個数: 96

約数和(自身を含む): 65108736

約数和(自身を除く): 43927968

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 43, 48, 56, 84, 86, 96, 112, 129, 168, 172, 224, 258, 301, 336, 344, 516, 602, 672, 688, 733, 903, 1032, 1204, 1376, 1466, 1806, 2064, 2199, 2408, 2932, 3612, 4128, 4398, 4816, 5131, 5864, 7224, 8796, 9632, 10262, 11728, 14448, 15393, 17592, 20524, 23456, 28896, 30786, 31519, 35184, 41048, 61572, 63038, 70368, 82096, 94557, 123144, 126076, 164192, 189114, 220633, 246288, 252152, 378228, 441266, 492576, 504304, 661899, 756456, 882532, 1008608, 1323798, 1512912, 1765064, 2647596, 3025824, 3530128, 5295192, 7060256, 10590384, 21180768]

約数ペア:

[(1, 21180768), (2, 10590384), (3, 7060256), (4, 5295192), (6, 3530128), (7, 3025824), (8, 2647596), (12, 1765064), (14, 1512912), (16, 1323798), (21, 1008608), (24, 882532), (28, 756456), (32, 661899), (42, 504304), (43, 492576), (48, 441266), (56, 378228), (84, 252152), (86, 246288), (96, 220633), (112, 189114), (129, 164192), (168, 126076), (172, 123144), (224, 94557), (258, 82096), (301, 70368), (336, 63038), (344, 61572), (516, 41048), (602, 35184), (672, 31519), (688, 30786), (733, 28896), (903, 23456), (1032, 20524), (1204, 17592), (1376, 15393), (1466, 14448), (1806, 11728), (2064, 10262), (2199, 9632), (2408, 8796), (2932, 7224), (3612, 5864), (4128, 5131), (4398, 4816)]