21961395

素因数分解:

$3^3\times 5^1\times {\mathrm{162677}}^1$

素因数の和:162691

約数の個数: 16

約数和(自身を含む): 39042720

約数和(自身を除く): 17081325

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 162677, 488031, 813385, 1464093, 2440155, 4392279, 7320465, 21961395]

約数ペア:

[(1, 21961395), (3, 7320465), (5, 4392279), (9, 2440155), (15, 1464093), (27, 813385), (45, 488031), (135, 162677)]