217485

素因数分解:

$3^5\times 5^1\times {\mathrm{179}}^1$

素因数の和:199

約数の個数: 24

約数和(自身を含む): 393120

約数和(自身を除く): 175635

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 179, 243, 405, 537, 895, 1215, 1611, 2685, 4833, 8055, 14499, 24165, 43497, 72495, 217485]

約数ペア:

[(1, 217485), (3, 72495), (5, 43497), (9, 24165), (15, 14499), (27, 8055), (45, 4833), (81, 2685), (135, 1611), (179, 1215), (243, 895), (405, 537)]