20421907

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1523}}^1$

素因数の和:1610

約数の個数: 16

約数和(自身を含む): 23701248

約数和(自身を除く): 3279341

約数列:

[1, 11, 23, 53, 253, 583, 1219, 1523, 13409, 16753, 35029, 80719, 385319, 887909, 1856537, 20421907]

約数ペア:

[(1, 20421907), (11, 1856537), (23, 887909), (53, 385319), (253, 80719), (583, 35029), (1219, 16753), (1523, 13409)]