28219527

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{3527}}^1$

素因数の和:3667

約数の個数: 24

約数和(自身を含む): 46964736

約数和(自身を除く): 18745209

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2667, 3527, 8001, 10581, 24689, 31743, 74067, 222201, 447929, 1343787, 3135503, 4031361, 9406509, 28219527]

約数ペア:

[(1, 28219527), (3, 9406509), (7, 4031361), (9, 3135503), (21, 1343787), (63, 447929), (127, 222201), (381, 74067), (889, 31743), (1143, 24689), (2667, 10581), (3527, 8001)]