19942456

素因数分解:

$2^3\times {\mathrm{491}}^1\times {\mathrm{5077}}^1$

素因数の和:5574

約数の個数: 16

約数和(自身を含む): 37475640

約数和(自身を除く): 17533184

約数列:

[1, 2, 4, 8, 491, 982, 1964, 3928, 5077, 10154, 20308, 40616, 2492807, 4985614, 9971228, 19942456]

約数ペア:

[(1, 19942456), (2, 9971228), (4, 4985614), (8, 2492807), (491, 40616), (982, 20308), (1964, 10154), (3928, 5077)]