18749143

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2311}}^1$

素因数の和:2398

約数の個数: 16

約数和(自身を含む): 22935040

約数和(自身を除く): 4185897

約数列:

[1, 7, 19, 61, 133, 427, 1159, 2311, 8113, 16177, 43909, 140971, 307363, 986797, 2678449, 18749143]

約数ペア:

[(1, 18749143), (7, 2678449), (19, 986797), (61, 307363), (133, 140971), (427, 43909), (1159, 16177), (2311, 8113)]