21184259

素因数分解:

${\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:374

約数の個数: 16

約数和(自身を含む): 23047200

約数和(自身を除く): 1862941

約数列:

[1, 19, 53, 109, 193, 1007, 2071, 3667, 5777, 10229, 21037, 109763, 194351, 399703, 1114961, 21184259]

約数ペア:

[(1, 21184259), (19, 1114961), (53, 399703), (109, 194351), (193, 109763), (1007, 21037), (2071, 10229), (3667, 5777)]