21280138

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{14437}}^1$

素因数の和:14517

約数の個数: 16

約数和(自身を含む): 35344224

約数和(自身を除く): 14064086

約数列:

[1, 2, 11, 22, 67, 134, 737, 1474, 14437, 28874, 158807, 317614, 967279, 1934558, 10640069, 21280138]

約数ペア:

[(1, 21280138), (2, 10640069), (11, 1934558), (22, 967279), (67, 317614), (134, 158807), (737, 28874), (1474, 14437)]