20754747

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3347}}^1$

素因数の和:3419

約数の個数: 24

約数和(自身を含む): 32904144

約数和(自身を除く): 12149397

約数列:

[1, 3, 9, 13, 39, 53, 117, 159, 477, 689, 2067, 3347, 6201, 10041, 30123, 43511, 130533, 177391, 391599, 532173, 1596519, 2306083, 6918249, 20754747]

約数ペア:

[(1, 20754747), (3, 6918249), (9, 2306083), (13, 1596519), (39, 532173), (53, 391599), (117, 177391), (159, 130533), (477, 43511), (689, 30123), (2067, 10041), (3347, 6201)]