19994054

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{1697}}^1$

素因数の和:1879

約数の個数: 16

約数和(自身を含む): 30930768

約数和(自身を除く): 10936714

約数列:

[1, 2, 43, 86, 137, 274, 1697, 3394, 5891, 11782, 72971, 145942, 232489, 464978, 9997027, 19994054]

約数ペア:

[(1, 19994054), (2, 9997027), (43, 464978), (86, 232489), (137, 145942), (274, 72971), (1697, 11782), (3394, 5891)]