20440178

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{9199}}^1$

素因数の和:9313

約数の個数: 16

約数和(自身を含む): 33782400

約数和(自身を除く): 13342222

約数列:

[1, 2, 11, 22, 101, 202, 1111, 2222, 9199, 18398, 101189, 202378, 929099, 1858198, 10220089, 20440178]

約数ペア:

[(1, 20440178), (2, 10220089), (11, 1858198), (22, 929099), (101, 202378), (202, 101189), (1111, 18398), (2222, 9199)]