21701713

素因数分解:

${\mathrm{11}}^2\times {\mathrm{43}}^2\times {\mathrm{97}}^1$

素因数の和:205

約数の個数: 18

約数和(自身を含む): 24673362

約数和(自身を除く): 2971649

約数列:

[1, 11, 43, 97, 121, 473, 1067, 1849, 4171, 5203, 11737, 20339, 45881, 179353, 223729, 504691, 1972883, 21701713]

約数ペア:

[(1, 21701713), (11, 1972883), (43, 504691), (97, 223729), (121, 179353), (473, 45881), (1067, 20339), (1849, 11737), (4171, 5203)]