19781774

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{4099}}^1$

素因数の和:4247

約数の個数: 16

約数和(自身を含む): 31488000

約数和(自身を除く): 11706226

約数列:

[1, 2, 19, 38, 127, 254, 2413, 4099, 4826, 8198, 77881, 155762, 520573, 1041146, 9890887, 19781774]

約数ペア:

[(1, 19781774), (2, 9890887), (19, 1041146), (38, 520573), (127, 155762), (254, 77881), (2413, 8198), (4099, 4826)]