20926045

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{12721}}^1$

素因数の和:12780

約数の個数: 16

約数和(自身を含む): 29311488

約数和(自身を除く): 8385443

約数列:

[1, 5, 7, 35, 47, 235, 329, 1645, 12721, 63605, 89047, 445235, 597887, 2989435, 4185209, 20926045]

約数ペア:

[(1, 20926045), (5, 4185209), (7, 2989435), (35, 597887), (47, 445235), (235, 89047), (329, 63605), (1645, 12721)]