21912368

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{33403}}^1$

素因数の和:33452

約数の個数: 20

約数和(自身を含む): 43492008

約数和(自身を除く): 21579640

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 33403, 66806, 133612, 267224, 534448, 1369523, 2739046, 5478092, 10956184, 21912368]

約数ペア:

[(1, 21912368), (2, 10956184), (4, 5478092), (8, 2739046), (16, 1369523), (41, 534448), (82, 267224), (164, 133612), (328, 66806), (656, 33403)]