18478503

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:448

約数の個数: 32

約数和(自身を含む): 28728000

約数和(自身を除く): 10249497

約数列:

[1, 3, 9, 27, 37, 53, 111, 159, 333, 349, 477, 999, 1047, 1431, 1961, 3141, 5883, 9423, 12913, 17649, 18497, 38739, 52947, 55491, 116217, 166473, 348651, 499419, 684389, 2053167, 6159501, 18478503]

約数ペア:

[(1, 18478503), (3, 6159501), (9, 2053167), (27, 684389), (37, 499419), (53, 348651), (111, 166473), (159, 116217), (333, 55491), (349, 52947), (477, 38739), (999, 18497), (1047, 17649), (1431, 12913), (1961, 9423), (3141, 5883)]