21183335

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{263}}^1$

素因数の和:538

約数の個数: 16

約数和(自身を含む): 25945920

約数和(自身を除く): 4762585

約数列:

[1, 5, 89, 181, 263, 445, 905, 1315, 16109, 23407, 47603, 80545, 117035, 238015, 4236667, 21183335]

約数ペア:

[(1, 21183335), (5, 4236667), (89, 238015), (181, 117035), (263, 80545), (445, 47603), (905, 23407), (1315, 16109)]