21115594

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{1249}}^1$

素因数の和:1437

約数の個数: 16

約数和(自身を含む): 32400000

約数和(自身を除く): 11284406

約数列:

[1, 2, 79, 107, 158, 214, 1249, 2498, 8453, 16906, 98671, 133643, 197342, 267286, 10557797, 21115594]

約数ペア:

[(1, 21115594), (2, 10557797), (79, 267286), (107, 197342), (158, 133643), (214, 98671), (1249, 16906), (2498, 8453)]