21055177

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1303}}^1$

素因数の和:1440

約数の個数: 16

約数和(自身を含む): 24974208

約数和(自身を除く): 3919031

約数列:

[1, 11, 13, 113, 143, 1243, 1303, 1469, 14333, 16159, 16939, 147239, 186329, 1619629, 1914107, 21055177]

約数ペア:

[(1, 21055177), (11, 1914107), (13, 1619629), (113, 186329), (143, 147239), (1243, 16939), (1303, 16159), (1469, 14333)]