18684135

素因数分解:

$3^3\times 5^1\times {\mathrm{138401}}^1$

素因数の和:138415

約数の個数: 16

約数和(自身を含む): 33216480

約数和(自身を除く): 14532345

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 138401, 415203, 692005, 1245609, 2076015, 3736827, 6228045, 18684135]

約数ペア:

[(1, 18684135), (3, 6228045), (5, 3736827), (9, 2076015), (15, 1245609), (27, 692005), (45, 415203), (135, 138401)]