21090842781

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{1453}}^1\times {\mathrm{79319}}^1$

素因数の和:80836

約数の個数: 16

約数和(自身を含む): 28602157440

約数和(自身を除く): 7511314659

約数列:

[1, 3, 61, 183, 1453, 4359, 79319, 88633, 237957, 265899, 4838459, 14515377, 115250507, 345751521, 7030280927, 21090842781]

約数ペア:

[(1, 21090842781), (3, 7030280927), (61, 345751521), (183, 115250507), (1453, 14515377), (4359, 4838459), (79319, 265899), (88633, 237957)]