28187691

素因数分解:

$3^1\times 7^2\times {\mathrm{337}}^1\times {\mathrm{569}}^1$

素因数の和:923

約数の個数: 24

約数和(自身を含む): 43926480

約数和(自身を除く): 15738789

約数列:

[1, 3, 7, 21, 49, 147, 337, 569, 1011, 1707, 2359, 3983, 7077, 11949, 16513, 27881, 49539, 83643, 191753, 575259, 1342271, 4026813, 9395897, 28187691]

約数ペア:

[(1, 28187691), (3, 9395897), (7, 4026813), (21, 1342271), (49, 575259), (147, 191753), (337, 83643), (569, 49539), (1011, 27881), (1707, 16513), (2359, 11949), (3983, 7077)]