21113057

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1847}}^1$

素因数の和:1948

約数の個数: 16

約数和(自身を含む): 25546752

約数和(自身を除く): 4433695

約数列:

[1, 7, 23, 71, 161, 497, 1633, 1847, 11431, 12929, 42481, 131137, 297367, 917959, 3016151, 21113057]

約数ペア:

[(1, 21113057), (7, 3016151), (23, 917959), (71, 297367), (161, 131137), (497, 42481), (1633, 12929), (1847, 11431)]