21111739

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{229}}^1$

素因数の和:303

約数の個数: 24

約数和(自身を含む): 25419600

約数和(自身を除く): 4307861

約数列:

[1, 11, 17, 29, 187, 229, 289, 319, 493, 2519, 3179, 3893, 5423, 6641, 8381, 42823, 66181, 73051, 92191, 112897, 727991, 1241867, 1919249, 21111739]

約数ペア:

[(1, 21111739), (11, 1919249), (17, 1241867), (29, 727991), (187, 112897), (229, 92191), (289, 73051), (319, 66181), (493, 42823), (2519, 8381), (3179, 6641), (3893, 5423)]