17399205

素因数分解:

$3^4\times 5^1\times {\mathrm{42961}}^1$

素因数の和:42978

約数の個数: 20

約数和(自身を含む): 31190412

約数和(自身を除く): 13791207

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 42961, 128883, 214805, 386649, 644415, 1159947, 1933245, 3479841, 5799735, 17399205]

約数ペア:

[(1, 17399205), (3, 5799735), (5, 3479841), (9, 1933245), (15, 1159947), (27, 644415), (45, 386649), (81, 214805), (135, 128883), (405, 42961)]