19926981

素因数分解:

$3^2\times {\mathrm{1039}}^1\times {\mathrm{2131}}^1$

素因数の和:3176

約数の個数: 12

約数和(自身を含む): 28824640

約数和(自身を除く): 8897659

約数列:

[1, 3, 9, 1039, 2131, 3117, 6393, 9351, 19179, 2214109, 6642327, 19926981]

約数ペア:

[(1, 19926981), (3, 6642327), (9, 2214109), (1039, 19179), (2131, 9351), (3117, 6393)]