18186579

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:312

約数の個数: 32

約数和(自身を含む): 27993600

約数和(自身を除く): 9807021

約数列:

[1, 3, 9, 27, 53, 71, 159, 179, 213, 477, 537, 639, 1431, 1611, 1917, 3763, 4833, 9487, 11289, 12709, 28461, 33867, 38127, 85383, 101601, 114381, 256149, 343143, 673577, 2020731, 6062193, 18186579]

約数ペア:

[(1, 18186579), (3, 6062193), (9, 2020731), (27, 673577), (53, 343143), (71, 256149), (159, 114381), (179, 101601), (213, 85383), (477, 38127), (537, 33867), (639, 28461), (1431, 12709), (1611, 11289), (1917, 9487), (3763, 4833)]