139477681

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{20147}}^1$

素因数の和:20220

約数の個数: 16

約数和(自身を含む): 170210304

約数和(自身を除く): 30732623

約数列:

[1, 7, 23, 43, 161, 301, 989, 6923, 20147, 141029, 463381, 866321, 3243667, 6064247, 19925383, 139477681]

約数ペア:

[(1, 139477681), (7, 19925383), (23, 6064247), (43, 3243667), (161, 866321), (301, 463381), (989, 141029), (6923, 20147)]