21299552

素因数分解:

$2^5\times {\mathrm{131}}^1\times {\mathrm{5081}}^1$

素因数の和:5222

約数の個数: 24

約数和(自身を含む): 42261912

約数和(自身を除く): 20962360

約数列:

[1, 2, 4, 8, 16, 32, 131, 262, 524, 1048, 2096, 4192, 5081, 10162, 20324, 40648, 81296, 162592, 665611, 1331222, 2662444, 5324888, 10649776, 21299552]

約数ペア:

[(1, 21299552), (2, 10649776), (4, 5324888), (8, 2662444), (16, 1331222), (32, 665611), (131, 162592), (262, 81296), (524, 40648), (1048, 20324), (2096, 10162), (4192, 5081)]