18220255

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{3371}}^1$

素因数の和:3446

約数の個数: 16

約数和(自身を含む): 23307264

約数和(自身を除く): 5087009

約数列:

[1, 5, 23, 47, 115, 235, 1081, 3371, 5405, 16855, 77533, 158437, 387665, 792185, 3644051, 18220255]

約数ペア:

[(1, 18220255), (5, 3644051), (23, 792185), (47, 387665), (115, 158437), (235, 77533), (1081, 16855), (3371, 5405)]