19156581

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{3331}}^1$

素因数の和:3414

約数の個数: 20

約数和(自身を含む): 29028384

約数和(自身を除く): 9871803

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 3331, 5751, 9993, 29979, 89937, 236501, 269811, 709503, 2128509, 6385527, 19156581]

約数ペア:

[(1, 19156581), (3, 6385527), (9, 2128509), (27, 709503), (71, 269811), (81, 236501), (213, 89937), (639, 29979), (1917, 9993), (3331, 5751)]