21284792

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{19141}}^1$

素因数の和:19286

約数の個数: 16

約数和(自身を含む): 40198200

約数和(自身を除く): 18913408

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 19141, 38282, 76564, 153128, 2660599, 5321198, 10642396, 21284792]

約数ペア:

[(1, 21284792), (2, 10642396), (4, 5321198), (8, 2660599), (139, 153128), (278, 76564), (556, 38282), (1112, 19141)]