18191819

素因数分解:

${\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:334

約数の個数: 16

約数和(自身を含む): 19852128

約数和(自身を除く): 1660309

約数列:

[1, 17, 73, 107, 137, 1241, 1819, 2329, 7811, 10001, 14659, 132787, 170017, 249203, 1070107, 18191819]

約数ペア:

[(1, 18191819), (17, 1070107), (73, 249203), (107, 170017), (137, 132787), (1241, 14659), (1819, 10001), (2329, 7811)]