20666905

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{15959}}^1$

素因数の和:16008

約数の個数: 16

約数和(自身を含む): 29111040

約数和(自身を除く): 8444135

約数列:

[1, 5, 7, 35, 37, 185, 259, 1295, 15959, 79795, 111713, 558565, 590483, 2952415, 4133381, 20666905]

約数ペア:

[(1, 20666905), (5, 4133381), (7, 2952415), (35, 590483), (37, 558565), (185, 111713), (259, 79795), (1295, 15959)]