21127635

素因数分解:

$3^5\times 5^1\times {\mathrm{17389}}^1$

素因数の和:17409

約数の個数: 24

約数和(自身を含む): 37979760

約数和(自身を除く): 16852125

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 17389, 52167, 86945, 156501, 260835, 469503, 782505, 1408509, 2347515, 4225527, 7042545, 21127635]

約数ペア:

[(1, 21127635), (3, 7042545), (5, 4225527), (9, 2347515), (15, 1408509), (27, 782505), (45, 469503), (81, 260835), (135, 156501), (243, 86945), (405, 52167), (1215, 17389)]