20677969

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{521}}^1$

素因数の和:648

約数の個数: 16

約数和(自身を含む): 23151744

約数和(自身を除く): 2473775

約数列:

[1, 13, 43, 71, 521, 559, 923, 3053, 6773, 22403, 36991, 39689, 291239, 480883, 1590613, 20677969]

約数ペア:

[(1, 20677969), (13, 1590613), (43, 480883), (71, 291239), (521, 39689), (559, 36991), (923, 22403), (3053, 6773)]