20180778021

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{20200979}}^1$

素因数の和:20201025

約数の個数: 16

約数和(自身を含む): 30705489600

約数和(自身を除く): 10524711579

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 20200979, 60602937, 181808811, 545426433, 747436223, 2242308669, 6726926007, 20180778021]

約数ペア:

[(1, 20180778021), (3, 6726926007), (9, 2242308669), (27, 747436223), (37, 545426433), (111, 181808811), (333, 60602937), (999, 20200979)]