221784752

素因数分解:

$2^4\times 7^1\times {\mathrm{1980221}}^1$

素因数の和:1980236

約数の個数: 20

約数和(自身を含む): 491095056

約数和(自身を除く): 269310304

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 1980221, 3960442, 7920884, 13861547, 15841768, 27723094, 31683536, 55446188, 110892376, 221784752]

約数ペア:

[(1, 221784752), (2, 110892376), (4, 55446188), (7, 31683536), (8, 27723094), (14, 15841768), (16, 13861547), (28, 7920884), (56, 3960442), (112, 1980221)]