19878003

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{881}}^1$

素因数の和:1019

約数の個数: 24

約数和(自身を含む): 30270240

約数和(自身を除く): 10392237

約数列:

[1, 3, 9, 23, 69, 109, 207, 327, 881, 981, 2507, 2643, 7521, 7929, 20263, 22563, 60789, 96029, 182367, 288087, 864261, 2208667, 6626001, 19878003]

約数ペア:

[(1, 19878003), (3, 6626001), (9, 2208667), (23, 864261), (69, 288087), (109, 182367), (207, 96029), (327, 60789), (881, 22563), (981, 20263), (2507, 7929), (2643, 7521)]