21190275

素因数分解:

$3^3\times 5^2\times {\mathrm{31393}}^1$

素因数の和:31412

約数の個数: 24

約数和(自身を含む): 38928560

約数和(自身を除く): 17738285

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 31393, 94179, 156965, 282537, 470895, 784825, 847611, 1412685, 2354475, 4238055, 7063425, 21190275]

約数ペア:

[(1, 21190275), (3, 7063425), (5, 4238055), (9, 2354475), (15, 1412685), (25, 847611), (27, 784825), (45, 470895), (75, 282537), (135, 156965), (225, 94179), (675, 31393)]