21040656

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4817}}^1$

素因数の和:4848

約数の個数: 80

約数和(自身を含む): 66912384

約数和(自身を除く): 45871728

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 39, 42, 48, 52, 56, 78, 84, 91, 104, 112, 156, 168, 182, 208, 273, 312, 336, 364, 546, 624, 728, 1092, 1456, 2184, 4368, 4817, 9634, 14451, 19268, 28902, 33719, 38536, 57804, 62621, 67438, 77072, 101157, 115608, 125242, 134876, 187863, 202314, 231216, 250484, 269752, 375726, 404628, 438347, 500968, 539504, 751452, 809256, 876694, 1001936, 1315041, 1502904, 1618512, 1753388, 2630082, 3005808, 3506776, 5260164, 7013552, 10520328, 21040656]

約数ペア:

[(1, 21040656), (2, 10520328), (3, 7013552), (4, 5260164), (6, 3506776), (7, 3005808), (8, 2630082), (12, 1753388), (13, 1618512), (14, 1502904), (16, 1315041), (21, 1001936), (24, 876694), (26, 809256), (28, 751452), (39, 539504), (42, 500968), (48, 438347), (52, 404628), (56, 375726), (78, 269752), (84, 250484), (91, 231216), (104, 202314), (112, 187863), (156, 134876), (168, 125242), (182, 115608), (208, 101157), (273, 77072), (312, 67438), (336, 62621), (364, 57804), (546, 38536), (624, 33719), (728, 28902), (1092, 19268), (1456, 14451), (2184, 9634), (4368, 4817)]