21603512

素因数分解:

$2^3\times 7^3\times {\mathrm{7873}}^1$

素因数の和:7900

約数の個数: 32

約数和(自身を含む): 47244000

約数和(自身を除く): 25640488

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2744, 7873, 15746, 31492, 55111, 62984, 110222, 220444, 385777, 440888, 771554, 1543108, 2700439, 3086216, 5400878, 10801756, 21603512]

約数ペア:

[(1, 21603512), (2, 10801756), (4, 5400878), (7, 3086216), (8, 2700439), (14, 1543108), (28, 771554), (49, 440888), (56, 385777), (98, 220444), (196, 110222), (343, 62984), (392, 55111), (686, 31492), (1372, 15746), (2744, 7873)]