21712656

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{64621}}^1$

素因数の和:64639

約数の個数: 40

約数和(自身を含む): 64105024

約数和(自身を除く): 42392368

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 64621, 129242, 193863, 258484, 387726, 452347, 516968, 775452, 904694, 1033936, 1357041, 1550904, 1809388, 2714082, 3101808, 3618776, 5428164, 7237552, 10856328, 21712656]

約数ペア:

[(1, 21712656), (2, 10856328), (3, 7237552), (4, 5428164), (6, 3618776), (7, 3101808), (8, 2714082), (12, 1809388), (14, 1550904), (16, 1357041), (21, 1033936), (24, 904694), (28, 775452), (42, 516968), (48, 452347), (56, 387726), (84, 258484), (112, 193863), (168, 129242), (336, 64621)]