20807813907

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{214211}}^1$

素因数の和:214511

約数の個数: 24

約数和(自身を含む): 30877374528

約数和(自身を除く): 10069560621

約数列:

[1, 3, 9, 43, 129, 251, 387, 753, 2259, 10793, 32379, 97137, 214211, 642633, 1927899, 9211073, 27633219, 53766961, 82899657, 161300883, 483902649, 2311979323, 6935937969, 20807813907]

約数ペア:

[(1, 20807813907), (3, 6935937969), (9, 2311979323), (43, 483902649), (129, 161300883), (251, 82899657), (387, 53766961), (753, 27633219), (2259, 9211073), (10793, 1927899), (32379, 642633), (97137, 214211)]