20740858

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{541}}^1\times {\mathrm{661}}^1$

素因数の和:1233

約数の個数: 16

約数和(自身を含む): 32292360

約数和(自身を除く): 11551502

約数列:

[1, 2, 29, 58, 541, 661, 1082, 1322, 15689, 19169, 31378, 38338, 357601, 715202, 10370429, 20740858]

約数ペア:

[(1, 20740858), (2, 10370429), (29, 715202), (58, 357601), (541, 38338), (661, 31378), (1082, 19169), (1322, 15689)]