21002498

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{7517}}^1$

素因数の和:7657

約数の個数: 16

約数和(自身を含む): 34642944

約数和(自身を除く): 13640446

約数列:

[1, 2, 11, 22, 127, 254, 1397, 2794, 7517, 15034, 82687, 165374, 954659, 1909318, 10501249, 21002498]

約数ペア:

[(1, 21002498), (2, 10501249), (11, 1909318), (22, 954659), (127, 165374), (254, 82687), (1397, 15034), (2794, 7517)]