20475477

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{971}}^1$

素因数の和:1062

約数の個数: 32

約数和(自身を含む): 33592320

約数和(自身を除く): 13116843

約数列:

[1, 3, 9, 11, 27, 33, 71, 99, 213, 297, 639, 781, 971, 1917, 2343, 2913, 7029, 8739, 10681, 21087, 26217, 32043, 68941, 96129, 206823, 288387, 620469, 758351, 1861407, 2275053, 6825159, 20475477]

約数ペア:

[(1, 20475477), (3, 6825159), (9, 2275053), (11, 1861407), (27, 758351), (33, 620469), (71, 288387), (99, 206823), (213, 96129), (297, 68941), (639, 32043), (781, 26217), (971, 21087), (1917, 10681), (2343, 8739), (2913, 7029)]