19974317

素因数分解:

${\mathrm{11}}^3\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:425

約数の個数: 16

約数和(自身を含む): 22545600

約数和(自身を除く): 2571283

約数列:

[1, 11, 43, 121, 349, 473, 1331, 3839, 5203, 15007, 42229, 57233, 165077, 464519, 1815847, 19974317]

約数ペア:

[(1, 19974317), (11, 1815847), (43, 464519), (121, 165077), (349, 57233), (473, 42229), (1331, 15007), (3839, 5203)]