21171344

素因数分解:

$2^4\times {\mathrm{1051}}^1\times {\mathrm{1259}}^1$

素因数の和:2318

約数の個数: 20

約数和(自身を含む): 41091120

約数和(自身を除く): 19919776

約数列:

[1, 2, 4, 8, 16, 1051, 1259, 2102, 2518, 4204, 5036, 8408, 10072, 16816, 20144, 1323209, 2646418, 5292836, 10585672, 21171344]

約数ペア:

[(1, 21171344), (2, 10585672), (4, 5292836), (8, 2646418), (16, 1323209), (1051, 20144), (1259, 16816), (2102, 10072), (2518, 8408), (4204, 5036)]