21172336

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{18127}}^1$

素因数の和:18208

約数の個数: 20

約数和(自身を含む): 41585632

約数和(自身を除く): 20413296

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 18127, 36254, 72508, 145016, 290032, 1323271, 2646542, 5293084, 10586168, 21172336]

約数ペア:

[(1, 21172336), (2, 10586168), (4, 5293084), (8, 2646542), (16, 1323271), (73, 290032), (146, 145016), (292, 72508), (584, 36254), (1168, 18127)]