20091631

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1\times {\mathrm{223}}^1$

素因数の和:502

約数の個数: 16

約数和(自身を含む): 23554048

約数和(自身を除く): 3462417

約数列:

[1, 7, 61, 211, 223, 427, 1477, 1561, 12871, 13603, 47053, 90097, 95221, 329371, 2870233, 20091631]

約数ペア:

[(1, 20091631), (7, 2870233), (61, 329371), (211, 95221), (223, 90097), (427, 47053), (1477, 13603), (1561, 12871)]