20078139

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{5393}}^1$

素因数の和:5486

約数の個数: 16

約数和(自身を含む): 28739232

約数和(自身を除く): 8661093

約数列:

[1, 3, 17, 51, 73, 219, 1241, 3723, 5393, 16179, 91681, 275043, 393689, 1181067, 6692713, 20078139]

約数ペア:

[(1, 20078139), (3, 6692713), (17, 1181067), (51, 393689), (73, 275043), (219, 91681), (1241, 16179), (3723, 5393)]