21329001

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{13859}}^1$

素因数の和:13890

約数の個数: 20

約数和(自身を含む): 33541200

約数和(自身を除く): 12212199

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 13859, 41577, 124731, 263321, 374193, 789963, 1122579, 2369889, 7109667, 21329001]

約数ペア:

[(1, 21329001), (3, 7109667), (9, 2369889), (19, 1122579), (27, 789963), (57, 374193), (81, 263321), (171, 124731), (513, 41577), (1539, 13859)]