21004577

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{1987}}^1$

素因数の和:2060

約数の個数: 12

約数和(自身を含む): 23689008

約数和(自身を除く): 2684431

約数列:

[1, 11, 31, 341, 961, 1987, 10571, 21857, 61597, 677567, 1909507, 21004577]

約数ペア:

[(1, 21004577), (11, 1909507), (31, 677567), (341, 61597), (961, 21857), (1987, 10571)]