18687645

素因数分解:

$3^3\times 5^1\times {\mathrm{138427}}^1$

素因数の和:138441

約数の個数: 16

約数和(自身を含む): 33222720

約数和(自身を除く): 14535075

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 138427, 415281, 692135, 1245843, 2076405, 3737529, 6229215, 18687645]

約数ペア:

[(1, 18687645), (3, 6229215), (5, 3737529), (9, 2076405), (15, 1245843), (27, 692135), (45, 415281), (135, 138427)]