20368376

素因数分解:

$2^3\times 7^1\times {\mathrm{557}}^1\times {\mathrm{653}}^1$

素因数の和:1223

約数の個数: 32

約数和(自身を含む): 43791840

約数和(自身を除く): 23423464

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 557, 653, 1114, 1306, 2228, 2612, 3899, 4456, 4571, 5224, 7798, 9142, 15596, 18284, 31192, 36568, 363721, 727442, 1454884, 2546047, 2909768, 5092094, 10184188, 20368376]

約数ペア:

[(1, 20368376), (2, 10184188), (4, 5092094), (7, 2909768), (8, 2546047), (14, 1454884), (28, 727442), (56, 363721), (557, 36568), (653, 31192), (1114, 18284), (1306, 15596), (2228, 9142), (2612, 7798), (3899, 5224), (4456, 4571)]