28718937

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12919}}^1$

素因数の和:12957

約数の個数: 24

約数和(自身を含む): 47028800

約数和(自身を除く): 18309863

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 12919, 38757, 116271, 167947, 245461, 503841, 736383, 1511523, 2209149, 3190993, 9572979, 28718937]

約数ペア:

[(1, 28718937), (3, 9572979), (9, 3190993), (13, 2209149), (19, 1511523), (39, 736383), (57, 503841), (117, 245461), (171, 167947), (247, 116271), (741, 38757), (2223, 12919)]