21296048

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{5179}}^1$

素因数の和:5444

約数の個数: 20

約数和(自身を含む): 41429640

約数和(自身を除く): 20133592

約数列:

[1, 2, 4, 8, 16, 257, 514, 1028, 2056, 4112, 5179, 10358, 20716, 41432, 82864, 1331003, 2662006, 5324012, 10648024, 21296048]

約数ペア:

[(1, 21296048), (2, 10648024), (4, 5324012), (8, 2662006), (16, 1331003), (257, 82864), (514, 41432), (1028, 20716), (2056, 10358), (4112, 5179)]