21132495

素因数分解:

$3^5\times 5^1\times {\mathrm{17393}}^1$

素因数の和:17413

約数の個数: 24

約数和(自身を含む): 37988496

約数和(自身を除く): 16856001

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 17393, 52179, 86965, 156537, 260895, 469611, 782685, 1408833, 2348055, 4226499, 7044165, 21132495]

約数ペア:

[(1, 21132495), (3, 7044165), (5, 4226499), (9, 2348055), (15, 1408833), (27, 782685), (45, 469611), (81, 260895), (135, 156537), (243, 86965), (405, 52179), (1215, 17393)]