18311397

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 28304640

約数和(自身を除く): 9993243

約数列:

[1, 3, 13, 17, 39, 51, 71, 213, 221, 389, 663, 923, 1167, 1207, 2769, 3621, 5057, 6613, 15171, 15691, 19839, 27619, 47073, 82857, 85969, 257907, 359047, 469523, 1077141, 1408569, 6103799, 18311397]

約数ペア:

[(1, 18311397), (3, 6103799), (13, 1408569), (17, 1077141), (39, 469523), (51, 359047), (71, 257907), (213, 85969), (221, 82857), (389, 47073), (663, 27619), (923, 19839), (1167, 15691), (1207, 15171), (2769, 6613), (3621, 5057)]