21249608

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{2179}}^1$

素因数の和:2261

約数の個数: 32

約数和(自身を含む): 42379200

約数和(自身を除く): 21129592

約数列:

[1, 2, 4, 8, 23, 46, 53, 92, 106, 184, 212, 424, 1219, 2179, 2438, 4358, 4876, 8716, 9752, 17432, 50117, 100234, 115487, 200468, 230974, 400936, 461948, 923896, 2656201, 5312402, 10624804, 21249608]

約数ペア:

[(1, 21249608), (2, 10624804), (4, 5312402), (8, 2656201), (23, 923896), (46, 461948), (53, 400936), (92, 230974), (106, 200468), (184, 115487), (212, 100234), (424, 50117), (1219, 17432), (2179, 9752), (2438, 8716), (4358, 4876)]