28004613

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5399}}^1$

素因数の和:5441

約数の個数: 32

約数和(自身を含む): 48384000

約数和(自身を除く): 20379387

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 5187, 5399, 16197, 37793, 70187, 102581, 113379, 210561, 307743, 491309, 718067, 1333553, 1473927, 2154201, 4000659, 9334871, 28004613]

約数ペア:

[(1, 28004613), (3, 9334871), (7, 4000659), (13, 2154201), (19, 1473927), (21, 1333553), (39, 718067), (57, 491309), (91, 307743), (133, 210561), (247, 113379), (273, 102581), (399, 70187), (741, 37793), (1729, 16197), (5187, 5399)]