289399773

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{390553}}^1$

素因数の和:390588

約数の個数: 16

約数和(自身を含む): 437420480

約数和(自身を除く): 148020707

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 390553, 1171659, 5077189, 7420507, 15231567, 22261521, 96466591, 289399773]

約数ペア:

[(1, 289399773), (3, 96466591), (13, 22261521), (19, 15231567), (39, 7420507), (57, 5077189), (247, 1171659), (741, 390553)]