21815369

素因数分解:

${\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:380

約数の個数: 16

約数和(自身を含む): 23815440

約数和(自身を除く): 2000071

約数列:

[1, 17, 61, 109, 193, 1037, 1853, 3281, 6649, 11773, 21037, 113033, 200141, 357629, 1283257, 21815369]

約数ペア:

[(1, 21815369), (17, 1283257), (61, 357629), (109, 200141), (193, 113033), (1037, 21037), (1853, 11773), (3281, 6649)]