215580988

素因数分解:

$2^2\times 7^4\times {\mathrm{22447}}^1$

素因数の和:22479

約数の個数: 30

約数和(自身を含む): 440137936

約数和(自身を除く): 224556948

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 2401, 4802, 9604, 22447, 44894, 89788, 157129, 314258, 628516, 1099903, 2199806, 4399612, 7699321, 15398642, 30797284, 53895247, 107790494, 215580988]

約数ペア:

[(1, 215580988), (2, 107790494), (4, 53895247), (7, 30797284), (14, 15398642), (28, 7699321), (49, 4399612), (98, 2199806), (196, 1099903), (343, 628516), (686, 314258), (1372, 157129), (2401, 89788), (4802, 44894), (9604, 22447)]