19891443

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{233}}^1$

素因数の和:459

約数の個数: 32

約数和(自身を含む): 31449600

約数和(自身を除く): 11558157

約数列:

[1, 3, 11, 13, 33, 39, 143, 199, 233, 429, 597, 699, 2189, 2563, 2587, 3029, 6567, 7689, 7761, 9087, 28457, 33319, 46367, 85371, 99957, 139101, 510037, 602771, 1530111, 1808313, 6630481, 19891443]

約数ペア:

[(1, 19891443), (3, 6630481), (11, 1808313), (13, 1530111), (33, 602771), (39, 510037), (143, 139101), (199, 99957), (233, 85371), (429, 46367), (597, 33319), (699, 28457), (2189, 9087), (2563, 7761), (2587, 7689), (3029, 6567)]