20279427

素因数分解:

$3^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{4007}}^1$

素因数の和:4258

約数の個数: 16

約数和(自身を含む): 31037952

約数和(自身を除く): 10758525

約数列:

[1, 3, 7, 21, 241, 723, 1687, 4007, 5061, 12021, 28049, 84147, 965687, 2897061, 6759809, 20279427]

約数ペア:

[(1, 20279427), (3, 6759809), (7, 2897061), (21, 965687), (241, 84147), (723, 28049), (1687, 12021), (4007, 5061)]