20758377

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{2971}}^1$

素因数の和:3128

約数の個数: 16

約数和(自身を含む): 29529792

約数和(自身を除く): 8771415

約数列:

[1, 3, 17, 51, 137, 411, 2329, 2971, 6987, 8913, 50507, 151521, 407027, 1221081, 6919459, 20758377]

約数ペア:

[(1, 20758377), (3, 6919459), (17, 1221081), (51, 407027), (137, 151521), (411, 50507), (2329, 8913), (2971, 6987)]