28667638

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{1021}}^1$

素因数の和:1263

約数の個数: 16

約数和(自身を含む): 43782480

約数和(自身を除く): 15114842

約数列:

[1, 2, 101, 139, 202, 278, 1021, 2042, 14039, 28078, 103121, 141919, 206242, 283838, 14333819, 28667638]

約数ペア:

[(1, 28667638), (2, 14333819), (101, 283838), (139, 206242), (202, 141919), (278, 103121), (1021, 28078), (2042, 14039)]