21525740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{63311}}^1$

素因数の和:63337

約数の個数: 24

約数和(自身を含む): 47863872

約数和(自身を除く): 26338132

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 63311, 126622, 253244, 316555, 633110, 1076287, 1266220, 2152574, 4305148, 5381435, 10762870, 21525740]

約数ペア:

[(1, 21525740), (2, 10762870), (4, 5381435), (5, 4305148), (10, 2152574), (17, 1266220), (20, 1076287), (34, 633110), (68, 316555), (85, 253244), (170, 126622), (340, 63311)]