20719765

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{8761}}^1$

素因数の和:8820

約数の個数: 16

約数和(自身を含む): 27758016

約数和(自身を除く): 7038251

約数列:

[1, 5, 11, 43, 55, 215, 473, 2365, 8761, 43805, 96371, 376723, 481855, 1883615, 4143953, 20719765]

約数ペア:

[(1, 20719765), (5, 4143953), (11, 1883615), (43, 481855), (55, 376723), (215, 96371), (473, 43805), (2365, 8761)]