19855551

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{8101}}^1$

素因数の和:8166

約数の個数: 16

約数和(自身を含む): 28519040

約数和(自身を除く): 8663489

約数列:

[1, 3, 19, 43, 57, 129, 817, 2451, 8101, 24303, 153919, 348343, 461757, 1045029, 6618517, 19855551]

約数ペア:

[(1, 19855551), (3, 6618517), (19, 1045029), (43, 461757), (57, 348343), (129, 153919), (817, 24303), (2451, 8101)]