21202612

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{941}}^1$

素因数の和:1119

約数の個数: 24

約数和(自身を含む): 38297952

約数和(自身を除く): 17095340

約数列:

[1, 2, 4, 43, 86, 131, 172, 262, 524, 941, 1882, 3764, 5633, 11266, 22532, 40463, 80926, 123271, 161852, 246542, 493084, 5300653, 10601306, 21202612]

約数ペア:

[(1, 21202612), (2, 10601306), (4, 5300653), (43, 493084), (86, 246542), (131, 161852), (172, 123271), (262, 80926), (524, 40463), (941, 22532), (1882, 11266), (3764, 5633)]