21888069

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{283}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 34897920

約数和(自身を除く): 13009851

約数列:

[1, 3, 7, 21, 29, 87, 127, 203, 283, 381, 609, 849, 889, 1981, 2667, 3683, 5943, 8207, 11049, 24621, 25781, 35941, 57449, 77343, 107823, 172347, 251587, 754761, 1042289, 3126867, 7296023, 21888069]

約数ペア:

[(1, 21888069), (3, 7296023), (7, 3126867), (21, 1042289), (29, 754761), (87, 251587), (127, 172347), (203, 107823), (283, 77343), (381, 57449), (609, 35941), (849, 25781), (889, 24621), (1981, 11049), (2667, 8207), (3683, 5943)]