20178849

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{709}}^1$

素因数の和:944

約数の個数: 16

約数和(自身を含む): 27604800

約数和(自身を除く): 7425951

約数列:

[1, 3, 53, 159, 179, 537, 709, 2127, 9487, 28461, 37577, 112731, 126911, 380733, 6726283, 20178849]

約数ペア:

[(1, 20178849), (3, 6726283), (53, 380733), (159, 126911), (179, 112731), (537, 37577), (709, 28461), (2127, 9487)]