19860255

素因数分解:

$3^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1123}}^1$

素因数の和:1268

約数の個数: 32

約数和(自身を含む): 35608320

約数和(自身を除く): 15748065

約数列:

[1, 3, 5, 9, 15, 27, 45, 131, 135, 393, 655, 1123, 1179, 1965, 3369, 3537, 5615, 5895, 10107, 16845, 17685, 30321, 50535, 147113, 151605, 441339, 735565, 1324017, 2206695, 3972051, 6620085, 19860255]

約数ペア:

[(1, 19860255), (3, 6620085), (5, 3972051), (9, 2206695), (15, 1324017), (27, 735565), (45, 441339), (131, 151605), (135, 147113), (393, 50535), (655, 30321), (1123, 17685), (1179, 16845), (1965, 10107), (3369, 5895), (3537, 5615)]