21004767

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{5651}}^1$

素因数の和:5723

約数の個数: 24

約数和(自身を含む): 35268480

約数和(自身を除く): 14263713

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 5651, 16953, 39557, 50859, 118671, 333409, 356013, 1000227, 2333863, 3000681, 7001589, 21004767]

約数ペア:

[(1, 21004767), (3, 7001589), (7, 3000681), (9, 2333863), (21, 1000227), (59, 356013), (63, 333409), (177, 118671), (413, 50859), (531, 39557), (1239, 16953), (3717, 5651)]