19720142

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{4831}}^1$

素因数の和:5003

約数の個数: 16

約数和(自身を含む): 32065152

約数和(自身を除く): 12345010

約数列:

[1, 2, 13, 26, 157, 314, 2041, 4082, 4831, 9662, 62803, 125606, 758467, 1516934, 9860071, 19720142]

約数ペア:

[(1, 19720142), (2, 9860071), (13, 1516934), (26, 758467), (157, 125606), (314, 62803), (2041, 9662), (4082, 4831)]