20154945

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79039}}^1$

素因数の和:79064

約数の個数: 16

約数和(自身を含む): 34145280

約数和(自身を除く): 13990335

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 79039, 237117, 395195, 1185585, 1343663, 4030989, 6718315, 20154945]

約数ペア:

[(1, 20154945), (3, 6718315), (5, 4030989), (15, 1343663), (17, 1185585), (51, 395195), (85, 237117), (255, 79039)]