21559118

素因数分解:

$2^1\times 7^2\times {\mathrm{179}}^1\times {\mathrm{1229}}^1$

素因数の和:1424

約数の個数: 24

約数和(自身を含む): 37859400

約数和(自身を除く): 16300282

約数列:

[1, 2, 7, 14, 49, 98, 179, 358, 1229, 1253, 2458, 2506, 8603, 8771, 17206, 17542, 60221, 120442, 219991, 439982, 1539937, 3079874, 10779559, 21559118]

約数ペア:

[(1, 21559118), (2, 10779559), (7, 3079874), (14, 1539937), (49, 439982), (98, 219991), (179, 120442), (358, 60221), (1229, 17542), (1253, 17206), (2458, 8771), (2506, 8603)]