19804918

素因数分解:

$2^1\times 7^2\times {\mathrm{179}}^1\times {\mathrm{1129}}^1$

素因数の和:1324

約数の個数: 24

約数和(自身を含む): 34781400

約数和(自身を除く): 14976482

約数列:

[1, 2, 7, 14, 49, 98, 179, 358, 1129, 1253, 2258, 2506, 7903, 8771, 15806, 17542, 55321, 110642, 202091, 404182, 1414637, 2829274, 9902459, 19804918]

約数ペア:

[(1, 19804918), (2, 9902459), (7, 2829274), (14, 1414637), (49, 404182), (98, 202091), (179, 110642), (358, 55321), (1129, 17542), (1253, 15806), (2258, 8771), (2506, 7903)]