331474221

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:423

約数の個数: 64

約数和(自身を含む): 549642240

約数和(自身を除く): 218168019

約数列:

[1, 3, 9, 13, 27, 39, 47, 71, 117, 141, 213, 283, 351, 423, 611, 639, 849, 923, 1269, 1833, 1917, 2547, 2769, 3337, 3679, 5499, 7641, 8307, 10011, 11037, 13301, 16497, 20093, 24921, 30033, 33111, 39903, 43381, 60279, 90099, 99333, 119709, 130143, 172913, 180837, 261209, 359127, 390429, 518739, 542511, 783627, 944371, 1171287, 1556217, 2350881, 2833113, 4668651, 7052643, 8499339, 12276823, 25498017, 36830469, 110491407, 331474221]

約数ペア:

[(1, 331474221), (3, 110491407), (9, 36830469), (13, 25498017), (27, 12276823), (39, 8499339), (47, 7052643), (71, 4668651), (117, 2833113), (141, 2350881), (213, 1556217), (283, 1171287), (351, 944371), (423, 783627), (611, 542511), (639, 518739), (849, 390429), (923, 359127), (1269, 261209), (1833, 180837), (1917, 172913), (2547, 130143), (2769, 119709), (3337, 99333), (3679, 90099), (5499, 60279), (7641, 43381), (8307, 39903), (10011, 33111), (11037, 30033), (13301, 24921), (16497, 20093)]