20278315659

素因数分解:

$3^1\times 7^1\times {\mathrm{3307}}^1\times {\mathrm{291997}}^1$

素因数の和:295314

約数の個数: 16

約数和(自身を含む): 30909740288

約数和(自身を除く): 10631424629

約数列:

[1, 3, 7, 21, 3307, 9921, 23149, 69447, 291997, 875991, 2043979, 6131937, 965634079, 2896902237, 6759438553, 20278315659]

約数ペア:

[(1, 20278315659), (3, 6759438553), (7, 2896902237), (21, 965634079), (3307, 6131937), (9921, 2043979), (23149, 875991), (69447, 291997)]