215226137

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{42061}}^1$

素因数の和:42128

約数の個数: 16

約数和(自身を含む): 266504832

約数和(自身を除く): 51278695

約数列:

[1, 7, 17, 43, 119, 301, 731, 5117, 42061, 294427, 715037, 1808623, 5005259, 12660361, 30746591, 215226137]

約数ペア:

[(1, 215226137), (7, 30746591), (17, 12660361), (43, 5005259), (119, 1808623), (301, 715037), (731, 294427), (5117, 42061)]