19716531

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{1021}}^1$

素因数の和:1222

約数の個数: 16

約数和(自身を含む): 27127968

約数和(自身を除く): 7411437

約数列:

[1, 3, 41, 123, 157, 471, 1021, 3063, 6437, 19311, 41861, 125583, 160297, 480891, 6572177, 19716531]

約数ペア:

[(1, 19716531), (3, 6572177), (41, 480891), (123, 160297), (157, 125583), (471, 41861), (1021, 19311), (3063, 6437)]