20536985

素因数分解:

$5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{4283}}^1$

素因数の和:4432

約数の個数: 16

約数和(自身を含む): 28377216

約数和(自身を除く): 7840231

約数列:

[1, 5, 7, 35, 137, 685, 959, 4283, 4795, 21415, 29981, 149905, 586771, 2933855, 4107397, 20536985]

約数ペア:

[(1, 20536985), (5, 4107397), (7, 2933855), (35, 586771), (137, 149905), (685, 29981), (959, 21415), (4283, 4795)]