20778241

素因数分解:

${\mathrm{11}}^3\times {\mathrm{67}}^1\times {\mathrm{233}}^1$

素因数の和:333

約数の個数: 16

約数和(自身を含む): 23295168

約数和(自身を除く): 2516927

約数列:

[1, 11, 67, 121, 233, 737, 1331, 2563, 8107, 15611, 28193, 89177, 171721, 310123, 1888931, 20778241]

約数ペア:

[(1, 20778241), (11, 1888931), (67, 310123), (121, 171721), (233, 89177), (737, 28193), (1331, 15611), (2563, 8107)]