21089003

素因数分解:

${\mathrm{13}}^3\times {\mathrm{29}}^1\times {\mathrm{331}}^1$

素因数の和:399

約数の個数: 16

約数和(自身を含む): 23704800

約数和(自身を除く): 2615797

約数列:

[1, 13, 29, 169, 331, 377, 2197, 4303, 4901, 9599, 55939, 63713, 124787, 727207, 1622231, 21089003]

約数ペア:

[(1, 21089003), (13, 1622231), (29, 727207), (169, 124787), (331, 63713), (377, 55939), (2197, 9599), (4303, 4901)]