19988474

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{151}}^1\times {\mathrm{547}}^1$

素因数の和:722

約数の個数: 24

約数和(自身を含む): 33235104

約数和(自身を除く): 13246630

約数列:

[1, 2, 11, 22, 121, 151, 242, 302, 547, 1094, 1661, 3322, 6017, 12034, 18271, 36542, 66187, 82597, 132374, 165194, 908567, 1817134, 9994237, 19988474]

約数ペア:

[(1, 19988474), (2, 9994237), (11, 1817134), (22, 908567), (121, 165194), (151, 132374), (242, 82597), (302, 66187), (547, 36542), (1094, 18271), (1661, 12034), (3322, 6017)]