20493459

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3739}}^1$

素因数の和:3784

約数の個数: 32

約数和(自身を含む): 35904000

約数和(自身を除く): 15410541

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 189, 203, 261, 609, 783, 1827, 3739, 5481, 11217, 26173, 33651, 78519, 100953, 108431, 235557, 325293, 706671, 759017, 975879, 2277051, 2927637, 6831153, 20493459]

約数ペア:

[(1, 20493459), (3, 6831153), (7, 2927637), (9, 2277051), (21, 975879), (27, 759017), (29, 706671), (63, 325293), (87, 235557), (189, 108431), (203, 100953), (261, 78519), (609, 33651), (783, 26173), (1827, 11217), (3739, 5481)]