19774281

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 29196288

約数和(自身を除く): 9422007

約数列:

[1, 3, 17, 43, 51, 71, 127, 129, 213, 381, 731, 1207, 2159, 2193, 3053, 3621, 5461, 6477, 9017, 9159, 16383, 27051, 51901, 92837, 153289, 155703, 278511, 387731, 459867, 1163193, 6591427, 19774281]

約数ペア:

[(1, 19774281), (3, 6591427), (17, 1163193), (43, 459867), (51, 387731), (71, 278511), (127, 155703), (129, 153289), (213, 92837), (381, 51901), (731, 27051), (1207, 16383), (2159, 9159), (2193, 9017), (3053, 6477), (3621, 5461)]