18157581

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{179}}^1$

素因数の和:235

約数の個数: 48

約数和(自身を含む): 30945600

約数和(自身を除く): 12788019

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 117, 153, 179, 221, 289, 351, 459, 537, 663, 867, 1611, 1989, 2327, 2601, 3043, 3757, 4833, 5967, 6981, 7803, 9129, 11271, 20943, 27387, 33813, 39559, 51731, 62829, 82161, 101439, 118677, 155193, 356031, 465579, 672503, 1068093, 1396737, 2017509, 6052527, 18157581]

約数ペア:

[(1, 18157581), (3, 6052527), (9, 2017509), (13, 1396737), (17, 1068093), (27, 672503), (39, 465579), (51, 356031), (117, 155193), (153, 118677), (179, 101439), (221, 82161), (289, 62829), (351, 51731), (459, 39559), (537, 33813), (663, 27387), (867, 20943), (1611, 11271), (1989, 9129), (2327, 7803), (2601, 6981), (3043, 5967), (3757, 4833)]