20777385

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32213}}^1$

素因数の和:32264

約数の個数: 16

約数和(自身を含む): 34017984

約数和(自身を除く): 13240599

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 32213, 96639, 161065, 483195, 1385159, 4155477, 6925795, 20777385]

約数ペア:

[(1, 20777385), (3, 6925795), (5, 4155477), (15, 1385159), (43, 483195), (129, 161065), (215, 96639), (645, 32213)]