21086039

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{563}}^1$

素因数の和:686

約数の個数: 16

約数和(自身を含む): 23624832

約数和(自身を除く): 2538793

約数列:

[1, 13, 43, 67, 559, 563, 871, 2881, 7319, 24209, 37453, 37721, 314717, 490373, 1622003, 21086039]

約数ペア:

[(1, 21086039), (13, 1622003), (43, 490373), (67, 314717), (559, 37721), (563, 37453), (871, 24209), (2881, 7319)]