20161774

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{7919}}^1$

素因数の和:8007

約数の個数: 16

約数和(自身を含む): 32313600

約数和(自身を除く): 12151826

約数列:

[1, 2, 19, 38, 67, 134, 1273, 2546, 7919, 15838, 150461, 300922, 530573, 1061146, 10080887, 20161774]

約数ペア:

[(1, 20161774), (2, 10080887), (19, 1061146), (38, 530573), (67, 300922), (134, 150461), (1273, 15838), (2546, 7919)]