28151431

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1801}}^1$

素因数の和:1855

約数の個数: 24

約数和(自身を含む): 36977040

約数和(自身を除く): 8825609

約数列:

[1, 7, 11, 29, 49, 77, 203, 319, 539, 1421, 1801, 2233, 12607, 15631, 19811, 52229, 88249, 138677, 365603, 574519, 970739, 2559221, 4021633, 28151431]

約数ペア:

[(1, 28151431), (7, 4021633), (11, 2559221), (29, 970739), (49, 574519), (77, 365603), (203, 138677), (319, 88249), (539, 52229), (1421, 19811), (1801, 15631), (2233, 12607)]