20388315

素因数分解:

$3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{12703}}^1$

素因数の和:12818

約数の個数: 16

約数和(自身を含む): 32928768

約数和(自身を除く): 12540453

約数列:

[1, 3, 5, 15, 107, 321, 535, 1605, 12703, 38109, 63515, 190545, 1359221, 4077663, 6796105, 20388315]

約数ペア:

[(1, 20388315), (3, 6796105), (5, 4077663), (15, 1359221), (107, 190545), (321, 63515), (535, 38109), (1605, 12703)]