21202887

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{2851}}^1$

素因数の和:2958

約数の個数: 16

約数和(自身を含む): 29478272

約数和(自身を除く): 8275385

約数列:

[1, 3, 37, 67, 111, 201, 2479, 2851, 7437, 8553, 105487, 191017, 316461, 573051, 7067629, 21202887]

約数ペア:

[(1, 21202887), (3, 7067629), (37, 573051), (67, 316461), (111, 191017), (201, 105487), (2479, 8553), (2851, 7437)]