20786547

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{547}}^1$

素因数の和:842

約数の個数: 16

約数和(自身を含む): 28408320

約数和(自身を除く): 7621773

約数列:

[1, 3, 53, 159, 239, 547, 717, 1641, 12667, 28991, 38001, 86973, 130733, 392199, 6928849, 20786547]

約数ペア:

[(1, 20786547), (3, 6928849), (53, 392199), (159, 130733), (239, 86973), (547, 38001), (717, 28991), (1641, 12667)]