20667745

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{8317}}^1$

素因数の和:8400

約数の個数: 16

約数和(自身を含む): 28747008

約数和(自身を除く): 8079263

約数列:

[1, 5, 7, 35, 71, 355, 497, 2485, 8317, 41585, 58219, 291095, 590507, 2952535, 4133549, 20667745]

約数ペア:

[(1, 20667745), (5, 4133549), (7, 2952535), (35, 590507), (71, 291095), (355, 58219), (497, 41585), (2485, 8317)]