1215135

素因数分解:

$3^3\times 5^1\times {\mathrm{9001}}^1$

素因数の和:9015

約数の個数: 16

約数和(自身を含む): 2160480

約数和(自身を除く): 945345

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 9001, 27003, 45005, 81009, 135015, 243027, 405045, 1215135]

約数ペア:

[(1, 1215135), (3, 405045), (5, 243027), (9, 135015), (15, 81009), (27, 45005), (45, 27003), (135, 9001)]