20495415

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59407}}^1$

素因数の和:59438

約数の個数: 16

約数和(自身を含む): 34219008

約数和(自身を除く): 13723593

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 59407, 178221, 297035, 891105, 1366361, 4099083, 6831805, 20495415]

約数ペア:

[(1, 20495415), (3, 6831805), (5, 4099083), (15, 1366361), (23, 891105), (69, 297035), (115, 178221), (345, 59407)]