21376688

素因数分解:

$2^4\times {\mathrm{283}}^1\times {\mathrm{4721}}^1$

素因数の和:5012

約数の個数: 20

約数和(自身を含む): 41572488

約数和(自身を除く): 20195800

約数列:

[1, 2, 4, 8, 16, 283, 566, 1132, 2264, 4528, 4721, 9442, 18884, 37768, 75536, 1336043, 2672086, 5344172, 10688344, 21376688]

約数ペア:

[(1, 21376688), (2, 10688344), (4, 5344172), (8, 2672086), (16, 1336043), (283, 75536), (566, 37768), (1132, 18884), (2264, 9442), (4528, 4721)]