20159951

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1523}}^1$

素因数の和:1622

約数の個数: 16

約数和(自身を含む): 24188928

約数和(自身を除く): 4028977

約数列:

[1, 7, 31, 61, 217, 427, 1523, 1891, 10661, 13237, 47213, 92903, 330491, 650321, 2879993, 20159951]

約数ペア:

[(1, 20159951), (7, 2879993), (31, 650321), (61, 330491), (217, 92903), (427, 47213), (1523, 13237), (1891, 10661)]