21839531

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{5297}}^1$

素因数の和:5354

約数の個数: 16

約数和(自身を含む): 27125760

約数和(自身を除く): 5286229

約数列:

[1, 7, 19, 31, 133, 217, 589, 4123, 5297, 37079, 100643, 164207, 704501, 1149449, 3119933, 21839531]

約数ペア:

[(1, 21839531), (7, 3119933), (19, 1149449), (31, 704501), (133, 164207), (217, 100643), (589, 37079), (4123, 5297)]