18965349

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:406

約数の個数: 36

約数和(自身を含む): 30555876

約数和(自身を除く): 11590527

約数列:

[1, 3, 9, 13, 37, 39, 111, 117, 169, 333, 337, 481, 507, 1011, 1443, 1521, 3033, 4329, 4381, 6253, 12469, 13143, 18759, 37407, 39429, 56277, 56953, 112221, 162097, 170859, 486291, 512577, 1458873, 2107261, 6321783, 18965349]

約数ペア:

[(1, 18965349), (3, 6321783), (9, 2107261), (13, 1458873), (37, 512577), (39, 486291), (111, 170859), (117, 162097), (169, 112221), (333, 56953), (337, 56277), (481, 39429), (507, 37407), (1011, 18759), (1443, 13143), (1521, 12469), (3033, 6253), (4329, 4381)]