21158260

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{10271}}^1$

素因数の和:10383

約数の個数: 24

約数和(自身を含む): 44868096

約数和(自身を除く): 23709836

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 10271, 20542, 41084, 51355, 102710, 205420, 1057913, 2115826, 4231652, 5289565, 10579130, 21158260]

約数ペア:

[(1, 21158260), (2, 10579130), (4, 5289565), (5, 4231652), (10, 2115826), (20, 1057913), (103, 205420), (206, 102710), (412, 51355), (515, 41084), (1030, 20542), (2060, 10271)]