20784508

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{5407}}^1$

素因数の和:5473

約数の個数: 18

約数和(自身を含む): 37591008

約数和(自身を除く): 16806500

約数列:

[1, 2, 4, 31, 62, 124, 961, 1922, 3844, 5407, 10814, 21628, 167617, 335234, 670468, 5196127, 10392254, 20784508]

約数ペア:

[(1, 20784508), (2, 10392254), (4, 5196127), (31, 670468), (62, 335234), (124, 167617), (961, 21628), (1922, 10814), (3844, 5407)]