21949295

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{3637}}^1$

素因数の和:3730

約数の個数: 16

約数和(自身を含む): 28289088

約数和(自身を除く): 6339793

約数列:

[1, 5, 17, 71, 85, 355, 1207, 3637, 6035, 18185, 61829, 258227, 309145, 1291135, 4389859, 21949295]

約数ペア:

[(1, 21949295), (5, 4389859), (17, 1291135), (71, 309145), (85, 258227), (355, 61829), (1207, 18185), (3637, 6035)]