20557653

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{1187}}^1$

素因数の和:1464

約数の個数: 16

約数和(自身を含む): 28740096

約数和(自身を除く): 8182443

約数列:

[1, 3, 23, 69, 251, 753, 1187, 3561, 5773, 17319, 27301, 81903, 297937, 893811, 6852551, 20557653]

約数ペア:

[(1, 20557653), (3, 6852551), (23, 893811), (69, 297937), (251, 81903), (753, 27301), (1187, 17319), (3561, 5773)]