289771377

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{1783}}^1$

素因数の和:1973

約数の個数: 32

約数和(自身を含む): 452136960

約数和(自身を除く): 162365583

約数列:

[1, 3, 7, 21, 71, 109, 213, 327, 497, 763, 1491, 1783, 2289, 5349, 7739, 12481, 23217, 37443, 54173, 126593, 162519, 194347, 379779, 583041, 886151, 1360429, 2658453, 4081287, 13798637, 41395911, 96590459, 289771377]

約数ペア:

[(1, 289771377), (3, 96590459), (7, 41395911), (21, 13798637), (71, 4081287), (109, 2658453), (213, 1360429), (327, 886151), (497, 583041), (763, 379779), (1491, 194347), (1783, 162519), (2289, 126593), (5349, 54173), (7739, 37443), (12481, 23217)]