20439265

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53089}}^1$

素因数の和:53112

約数の個数: 16

約数和(自身を含む): 30579840

約数和(自身を除く): 10140575

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 53089, 265445, 371623, 583979, 1858115, 2919895, 4087853, 20439265]

約数ペア:

[(1, 20439265), (5, 4087853), (7, 2919895), (11, 1858115), (35, 583979), (55, 371623), (77, 265445), (385, 53089)]