28702947

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2237}}^1$

素因数の和:2307

約数の個数: 32

約数和(自身を含む): 48125952

約数和(自身を除く): 19423005

約数列:

[1, 3, 7, 13, 21, 39, 47, 91, 141, 273, 329, 611, 987, 1833, 2237, 4277, 6711, 12831, 15659, 29081, 46977, 87243, 105139, 203567, 315417, 610701, 735973, 1366807, 2207919, 4100421, 9567649, 28702947]

約数ペア:

[(1, 28702947), (3, 9567649), (7, 4100421), (13, 2207919), (21, 1366807), (39, 735973), (47, 610701), (91, 315417), (141, 203567), (273, 105139), (329, 87243), (611, 46977), (987, 29081), (1833, 15659), (2237, 12831), (4277, 6711)]