17221581

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 28887040

約数和(自身を除く): 11665459

約数列:

[1, 3, 9, 13, 19, 39, 57, 61, 117, 127, 171, 183, 247, 381, 549, 741, 793, 1143, 1159, 1651, 2223, 2379, 2413, 3477, 4953, 7137, 7239, 7747, 10431, 14859, 15067, 21717, 23241, 31369, 45201, 69723, 94107, 100711, 135603, 147193, 282321, 302133, 441579, 906399, 1324737, 1913509, 5740527, 17221581]

約数ペア:

[(1, 17221581), (3, 5740527), (9, 1913509), (13, 1324737), (19, 906399), (39, 441579), (57, 302133), (61, 282321), (117, 147193), (127, 135603), (171, 100711), (183, 94107), (247, 69723), (381, 45201), (549, 31369), (741, 23241), (793, 21717), (1143, 15067), (1159, 14859), (1651, 10431), (2223, 7747), (2379, 7239), (2413, 7137), (3477, 4953)]