20338983

素因数分解:

$3^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{2857}}^1$

素因数の和:2983

約数の個数: 24

約数和(自身を含む): 33884448

約数和(自身を除く): 13545465

約数列:

[1, 3, 7, 9, 21, 63, 113, 339, 791, 1017, 2373, 2857, 7119, 8571, 19999, 25713, 59997, 179991, 322841, 968523, 2259887, 2905569, 6779661, 20338983]

約数ペア:

[(1, 20338983), (3, 6779661), (7, 2905569), (9, 2259887), (21, 968523), (63, 322841), (113, 179991), (339, 59997), (791, 25713), (1017, 19999), (2373, 8571), (2857, 7119)]