20243155

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2141}}^1$

素因数の和:2238

約数の個数: 16

約数和(自身を含む): 25498368

約数和(自身を除く): 5255213

約数列:

[1, 5, 31, 61, 155, 305, 1891, 2141, 9455, 10705, 66371, 130601, 331855, 653005, 4048631, 20243155]

約数ペア:

[(1, 20243155), (5, 4048631), (31, 653005), (61, 331855), (155, 130601), (305, 66371), (1891, 10705), (2141, 9455)]