861975

素因数分解:

$3^3\times 5^2\times {\mathrm{1277}}^1$

素因数の和:1296

約数の個数: 24

約数和(自身を含む): 1584720

約数和(自身を除く): 722745

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 1277, 3831, 6385, 11493, 19155, 31925, 34479, 57465, 95775, 172395, 287325, 861975]

約数ペア:

[(1, 861975), (3, 287325), (5, 172395), (9, 95775), (15, 57465), (25, 34479), (27, 31925), (45, 19155), (75, 11493), (135, 6385), (225, 3831), (675, 1277)]