21389564270

素因数分解:

$2^1\times 5^1\times {\mathrm{739}}^1\times {\mathrm{937}}^1\times {\mathrm{3089}}^1$

素因数の和:4772

約数の個数: 32

約数和(自身を含む): 38606954400

約数和(自身を除く): 17217390130

約数列:

[1, 2, 5, 10, 739, 937, 1478, 1874, 3089, 3695, 4685, 6178, 7390, 9370, 15445, 30890, 692443, 1384886, 2282771, 2894393, 3462215, 4565542, 5788786, 6924430, 11413855, 14471965, 22827710, 28943930, 2138956427, 4277912854, 10694782135, 21389564270]

約数ペア:

[(1, 21389564270), (2, 10694782135), (5, 4277912854), (10, 2138956427), (739, 28943930), (937, 22827710), (1478, 14471965), (1874, 11413855), (3089, 6924430), (3695, 5788786), (4685, 4565542), (6178, 3462215), (7390, 2894393), (9370, 2282771), (15445, 1384886), (30890, 692443)]