18906178

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{1279}}^1$

素因数の和:1689

約数の個数: 16

約数和(自身を含む): 29952000

約数和(自身を除く): 11045822

約数列:

[1, 2, 19, 38, 389, 778, 1279, 2558, 7391, 14782, 24301, 48602, 497531, 995062, 9453089, 18906178]

約数ペア:

[(1, 18906178), (2, 9453089), (19, 995062), (38, 497531), (389, 48602), (778, 24301), (1279, 14782), (2558, 7391)]