208035821

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{281}}^1\times {\mathrm{521}}^1$

素因数の和:845

約数の個数: 24

約数和(自身を含む): 251718840

約数和(自身を除く): 43683019

約数列:

[1, 7, 29, 49, 203, 281, 521, 1421, 1967, 3647, 8149, 13769, 15109, 25529, 57043, 105763, 146401, 399301, 740341, 1024807, 4245629, 7173649, 29719403, 208035821]

約数ペア:

[(1, 208035821), (7, 29719403), (29, 7173649), (49, 4245629), (203, 1024807), (281, 740341), (521, 399301), (1421, 146401), (1967, 105763), (3647, 57043), (8149, 25529), (13769, 15109)]