21088041

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{1871}}^1$

素因数の和:1921

約数の個数: 24

約数和(自身を含む): 32183424

約数和(自身を除く): 11095383

約数列:

[1, 3, 13, 17, 39, 51, 221, 289, 663, 867, 1871, 3757, 5613, 11271, 24323, 31807, 72969, 95421, 413491, 540719, 1240473, 1622157, 7029347, 21088041]

約数ペア:

[(1, 21088041), (3, 7029347), (13, 1622157), (17, 1240473), (39, 540719), (51, 413491), (221, 95421), (289, 72969), (663, 31807), (867, 24323), (1871, 11271), (3757, 5613)]