21105368

素因数分解:

$2^3\times {\mathrm{127}}^1\times {\mathrm{20773}}^1$

素因数の和:20906

約数の個数: 16

約数和(自身を含む): 39886080

約数和(自身を除く): 18780712

約数列:

[1, 2, 4, 8, 127, 254, 508, 1016, 20773, 41546, 83092, 166184, 2638171, 5276342, 10552684, 21105368]

約数ペア:

[(1, 21105368), (2, 10552684), (4, 5276342), (8, 2638171), (127, 166184), (254, 83092), (508, 41546), (1016, 20773)]