20001107

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1511}}^1$

素因数の和:1610

約数の個数: 16

約数和(自身を含む): 23998464

約数和(自身を除く): 3997357

約数列:

[1, 7, 31, 61, 217, 427, 1511, 1891, 10577, 13237, 46841, 92171, 327887, 645197, 2857301, 20001107]

約数ペア:

[(1, 20001107), (7, 2857301), (31, 645197), (61, 327887), (217, 92171), (427, 46841), (1511, 13237), (1891, 10577)]