21415597

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{547}}^1$

素因数の和:625

約数の個数: 24

約数和(自身を含む): 26987904

約数和(自身を除く): 5572307

約数列:

[1, 7, 17, 47, 49, 119, 329, 547, 799, 833, 2303, 3829, 5593, 9299, 25709, 26803, 39151, 65093, 179963, 437053, 455651, 1259741, 3059371, 21415597]

約数ペア:

[(1, 21415597), (7, 3059371), (17, 1259741), (47, 455651), (49, 437053), (119, 179963), (329, 65093), (547, 39151), (799, 26803), (833, 25709), (2303, 9299), (3829, 5593)]