21789272

素因数分解:

$2^3\times {\mathrm{509}}^1\times {\mathrm{5351}}^1$

素因数の和:5866

約数の個数: 16

約数和(自身を含む): 40942800

約数和(自身を除く): 19153528

約数列:

[1, 2, 4, 8, 509, 1018, 2036, 4072, 5351, 10702, 21404, 42808, 2723659, 5447318, 10894636, 21789272]

約数ペア:

[(1, 21789272), (2, 10894636), (4, 5447318), (8, 2723659), (509, 42808), (1018, 21404), (2036, 10702), (4072, 5351)]