20147995

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{9437}}^1$

素因数の和:9510

約数の個数: 16

約数和(自身を含む): 28087488

約数和(自身を除く): 7939493

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 9437, 47185, 66059, 330295, 575657, 2878285, 4029599, 20147995]

約数ペア:

[(1, 20147995), (5, 4029599), (7, 2878285), (35, 575657), (61, 330295), (305, 66059), (427, 47185), (2135, 9437)]