18690291

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{353}}^1$

素因数の和:452

約数の個数: 32

約数和(自身を含む): 29056320

約数和(自身を除く): 10366029

約数列:

[1, 3, 9, 27, 37, 53, 111, 159, 333, 353, 477, 999, 1059, 1431, 1961, 3177, 5883, 9531, 13061, 17649, 18709, 39183, 52947, 56127, 117549, 168381, 352647, 505143, 692233, 2076699, 6230097, 18690291]

約数ペア:

[(1, 18690291), (3, 6230097), (9, 2076699), (27, 692233), (37, 505143), (53, 352647), (111, 168381), (159, 117549), (333, 56127), (353, 52947), (477, 39183), (999, 18709), (1059, 17649), (1431, 13061), (1961, 9531), (3177, 5883)]