20469519

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{5507}}^1$

素因数の和:5579

約数の個数: 24

約数和(自身を含む): 34369920

約数和(自身を除く): 13900401

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 5507, 16521, 38549, 49563, 115647, 324913, 346941, 974739, 2274391, 2924217, 6823173, 20469519]

約数ペア:

[(1, 20469519), (3, 6823173), (7, 2924217), (9, 2274391), (21, 974739), (59, 346941), (63, 324913), (177, 115647), (413, 49563), (531, 38549), (1239, 16521), (3717, 5507)]