18994227

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{179}}^1$

素因数の和:383

約数の個数: 32

約数和(自身を含む): 30228480

約数和(自身を除く): 11234253

約数列:

[1, 3, 7, 21, 31, 93, 163, 179, 217, 489, 537, 651, 1141, 1253, 3423, 3759, 5053, 5549, 15159, 16647, 29177, 35371, 38843, 87531, 106113, 116529, 204239, 612717, 904487, 2713461, 6331409, 18994227]

約数ペア:

[(1, 18994227), (3, 6331409), (7, 2713461), (21, 904487), (31, 612717), (93, 204239), (163, 116529), (179, 106113), (217, 87531), (489, 38843), (537, 35371), (651, 29177), (1141, 16647), (1253, 15159), (3423, 5549), (3759, 5053)]