21303037

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{307}}^1\times {\mathrm{431}}^1$

素因数の和:768

約数の個数: 16

約数和(自身を含む): 25546752

約数和(自身を除く): 4243715

約数列:

[1, 7, 23, 161, 307, 431, 2149, 3017, 7061, 9913, 49427, 69391, 132317, 926219, 3043291, 21303037]

約数ペア:

[(1, 21303037), (7, 3043291), (23, 926219), (161, 132317), (307, 69391), (431, 49427), (2149, 9913), (3017, 7061)]