21173715

素因数分解:

$3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5669}}^1$

素因数の和:5763

約数の個数: 24

約数和(自身を含む): 37149840

約数和(自身を除く): 15976125

約数列:

[1, 3, 5, 9, 15, 45, 83, 249, 415, 747, 1245, 3735, 5669, 17007, 28345, 51021, 85035, 255105, 470527, 1411581, 2352635, 4234743, 7057905, 21173715]

約数ペア:

[(1, 21173715), (3, 7057905), (5, 4234743), (9, 2352635), (15, 1411581), (45, 470527), (83, 255105), (249, 85035), (415, 51021), (747, 28345), (1245, 17007), (3735, 5669)]