20431945

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{683}}^1$

素因数の和:912

約数の個数: 16

約数和(自身を含む): 25477632

約数和(自身を除く): 5045687

約数列:

[1, 5, 31, 155, 193, 683, 965, 3415, 5983, 21173, 29915, 105865, 131819, 659095, 4086389, 20431945]

約数ペア:

[(1, 20431945), (5, 4086389), (31, 659095), (155, 131819), (193, 105865), (683, 29915), (965, 21173), (3415, 5983)]