28688793

素因数分解:

$3^1\times 7^1\times {\mathrm{619}}^1\times {\mathrm{2207}}^1$

素因数の和:2836

約数の個数: 16

約数和(自身を含む): 43806720

約数和(自身を除く): 15117927

約数列:

[1, 3, 7, 21, 619, 1857, 2207, 4333, 6621, 12999, 15449, 46347, 1366133, 4098399, 9562931, 28688793]

約数ペア:

[(1, 28688793), (3, 9562931), (7, 4098399), (21, 1366133), (619, 46347), (1857, 15449), (2207, 12999), (4333, 6621)]