15865983

素因数分解:

$3^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{661}}^1$

素因数の和:804

約数の個数: 32

約数和(自身を含む): 27115520

約数和(自身を除く): 11249537

約数列:

[1, 3, 7, 9, 21, 27, 63, 127, 189, 381, 661, 889, 1143, 1983, 2667, 3429, 4627, 5949, 8001, 13881, 17847, 24003, 41643, 83947, 124929, 251841, 587629, 755523, 1762887, 2266569, 5288661, 15865983]

約数ペア:

[(1, 15865983), (3, 5288661), (7, 2266569), (9, 1762887), (21, 755523), (27, 587629), (63, 251841), (127, 124929), (189, 83947), (381, 41643), (661, 24003), (889, 17847), (1143, 13881), (1983, 8001), (2667, 5949), (3429, 4627)]