20219797

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:508

約数の個数: 16

約数和(自身を含む): 22607872

約数和(自身を除く): 2388075

約数列:

[1, 13, 37, 127, 331, 481, 1651, 4303, 4699, 12247, 42037, 61087, 159211, 546481, 1555369, 20219797]

約数ペア:

[(1, 20219797), (13, 1555369), (37, 546481), (127, 159211), (331, 61087), (481, 42037), (1651, 12247), (4303, 4699)]