217069605

素因数分解:

$3^3\times 5^1\times {\mathrm{1607923}}^1$

素因数の和:1607937

約数の個数: 16

約数和(自身を含む): 385901760

約数和(自身を除く): 168832155

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1607923, 4823769, 8039615, 14471307, 24118845, 43413921, 72356535, 217069605]

約数ペア:

[(1, 217069605), (3, 72356535), (5, 43413921), (9, 24118845), (15, 14471307), (27, 8039615), (45, 4823769), (135, 1607923)]