20684742

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{521}}^1$

素因数の和:1048

約数の個数: 32

約数和(自身を含む): 44724960

約数和(自身を除く): 24040218

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 509, 521, 1018, 1042, 1527, 1563, 3054, 3126, 6617, 6773, 13234, 13546, 19851, 20319, 39702, 40638, 265189, 530378, 795567, 1591134, 3447457, 6894914, 10342371, 20684742]

約数ペア:

[(1, 20684742), (2, 10342371), (3, 6894914), (6, 3447457), (13, 1591134), (26, 795567), (39, 530378), (78, 265189), (509, 40638), (521, 39702), (1018, 20319), (1042, 19851), (1527, 13546), (1563, 13234), (3054, 6773), (3126, 6617)]