28209813

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{659}}^1\times {\mathrm{751}}^1$

素因数の和:1432

約数の個数: 16

約数和(自身を含む): 39705600

約数和(自身を除く): 11495787

約数列:

[1, 3, 19, 57, 659, 751, 1977, 2253, 12521, 14269, 37563, 42807, 494909, 1484727, 9403271, 28209813]

約数ペア:

[(1, 28209813), (3, 9403271), (19, 1484727), (57, 494909), (659, 42807), (751, 37563), (1977, 14269), (2253, 12521)]