21385089

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{11369}}^1$

素因数の和:11405

約数の個数: 24

約数和(自身を含む): 35474400

約数和(自身を除く): 14089311

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 627, 1881, 11369, 34107, 102321, 125059, 216011, 375177, 648033, 1125531, 1944099, 2376121, 7128363, 21385089]

約数ペア:

[(1, 21385089), (3, 7128363), (9, 2376121), (11, 1944099), (19, 1125531), (33, 648033), (57, 375177), (99, 216011), (171, 125059), (209, 102321), (627, 34107), (1881, 11369)]