20213008

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{26879}}^1$

素因数の和:26934

約数の個数: 20

約数和(自身を含む): 39997440

約数和(自身を除く): 19784432

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 26879, 53758, 107516, 215032, 430064, 1263313, 2526626, 5053252, 10106504, 20213008]

約数ペア:

[(1, 20213008), (2, 10106504), (4, 5053252), (8, 2526626), (16, 1263313), (47, 430064), (94, 215032), (188, 107516), (376, 53758), (752, 26879)]