21242992

素因数分解:

$2^4\times {\mathrm{1063}}^1\times {\mathrm{1249}}^1$

素因数の和:2320

約数の個数: 20

約数和(自身を含む): 41230000

約数和(自身を除く): 19987008

約数列:

[1, 2, 4, 8, 16, 1063, 1249, 2126, 2498, 4252, 4996, 8504, 9992, 17008, 19984, 1327687, 2655374, 5310748, 10621496, 21242992]

約数ペア:

[(1, 21242992), (2, 10621496), (4, 5310748), (8, 2655374), (16, 1327687), (1063, 19984), (1249, 17008), (2126, 9992), (2498, 8504), (4252, 4996)]