9919143

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4987}}^1$

素因数の和:5023

約数の個数: 24

約数和(自身を含む): 16340688

約数和(自身を除く): 6421545

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 4987, 14961, 44883, 64831, 84779, 194493, 254337, 583479, 763011, 1102127, 3306381, 9919143]

約数ペア:

[(1, 9919143), (3, 3306381), (9, 1102127), (13, 763011), (17, 583479), (39, 254337), (51, 194493), (117, 84779), (153, 64831), (221, 44883), (663, 14961), (1989, 4987)]