21746218

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 36723456

約数和(自身を除く): 14977238

約数列:

[1, 2, 13, 26, 43, 53, 86, 106, 367, 559, 689, 734, 1118, 1378, 2279, 4558, 4771, 9542, 15781, 19451, 29627, 31562, 38902, 59254, 205153, 252863, 410306, 505726, 836393, 1672786, 10873109, 21746218]

約数ペア:

[(1, 21746218), (2, 10873109), (13, 1672786), (26, 836393), (43, 505726), (53, 410306), (86, 252863), (106, 205153), (367, 59254), (559, 38902), (689, 31562), (734, 29627), (1118, 19451), (1378, 15781), (2279, 9542), (4558, 4771)]