20649293

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1307}}^1$

素因数の和:1412

約数の個数: 16

約数和(自身を含む): 24653184

約数和(自身を除く): 4003891

約数列:

[1, 7, 37, 61, 259, 427, 1307, 2257, 9149, 15799, 48359, 79727, 338513, 558089, 2949899, 20649293]

約数ペア:

[(1, 20649293), (7, 2949899), (37, 558089), (61, 338513), (259, 79727), (427, 48359), (1307, 15799), (2257, 9149)]