19953867

素因数分解:

$3^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1\times {\mathrm{439}}^1$

素因数の和:690

約数の個数: 16

約数和(自身を含む): 27104000

約数和(自身を除く): 7150133

約数列:

[1, 3, 109, 139, 327, 417, 439, 1317, 15151, 45453, 47851, 61021, 143553, 183063, 6651289, 19953867]

約数ペア:

[(1, 19953867), (3, 6651289), (109, 183063), (139, 143553), (327, 61021), (417, 47851), (439, 45453), (1317, 15151)]