21145449

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{179}}^1\times {\mathrm{233}}^1$

素因数の和:441

約数の個数: 24

約数和(自身を含む): 30831840

約数和(自身を除く): 9686391

約数列:

[1, 3, 13, 39, 169, 179, 233, 507, 537, 699, 2327, 3029, 6981, 9087, 30251, 39377, 41707, 90753, 118131, 125121, 542191, 1626573, 7048483, 21145449]

約数ペア:

[(1, 21145449), (3, 7048483), (13, 1626573), (39, 542191), (169, 125121), (179, 118131), (233, 90753), (507, 41707), (537, 39377), (699, 30251), (2327, 9087), (3029, 6981)]