28421217

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{7759}}^1$

素因数の和:7813

約数の個数: 24

約数和(自身を含む): 46001280

約数和(自身を除く): 17580063

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 333, 407, 1221, 3663, 7759, 23277, 69831, 85349, 256047, 287083, 768141, 861249, 2583747, 3157913, 9473739, 28421217]

約数ペア:

[(1, 28421217), (3, 9473739), (9, 3157913), (11, 2583747), (33, 861249), (37, 768141), (99, 287083), (111, 256047), (333, 85349), (407, 69831), (1221, 23277), (3663, 7759)]