21866380

素因数分解:

$2^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{3947}}^1$

素因数の和:4233

約数の個数: 24

約数和(自身を含む): 46096848

約数和(自身を除く): 24230468

約数列:

[1, 2, 4, 5, 10, 20, 277, 554, 1108, 1385, 2770, 3947, 5540, 7894, 15788, 19735, 39470, 78940, 1093319, 2186638, 4373276, 5466595, 10933190, 21866380]

約数ペア:

[(1, 21866380), (2, 10933190), (4, 5466595), (5, 4373276), (10, 2186638), (20, 1093319), (277, 78940), (554, 39470), (1108, 19735), (1385, 15788), (2770, 7894), (3947, 5540)]