220173289

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{409}}^1\times {\mathrm{1451}}^1$

素因数の和:1920

約数の個数: 16

約数和(自身を含む): 257178240

約数和(自身を除く): 37004951

約数列:

[1, 7, 53, 371, 409, 1451, 2863, 10157, 21677, 76903, 151739, 538321, 593459, 4154213, 31453327, 220173289]

約数ペア:

[(1, 220173289), (7, 31453327), (53, 4154213), (371, 593459), (409, 538321), (1451, 151739), (2863, 76903), (10157, 21677)]