28027215

素因数分解:

$3^4\times 5^1\times {\mathrm{69203}}^1$

素因数の和:69220

約数の個数: 20

約数和(自身を含む): 50242104

約数和(自身を除く): 22214889

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 69203, 207609, 346015, 622827, 1038045, 1868481, 3114135, 5605443, 9342405, 28027215]

約数ペア:

[(1, 28027215), (3, 9342405), (5, 5605443), (9, 3114135), (15, 1868481), (27, 1038045), (45, 622827), (81, 346015), (135, 207609), (405, 69203)]