18725589

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{1061}}^1$

素因数の和:1157

約数の個数: 24

約数和(自身を含む): 28329912

約数和(自身を除く): 9604323

約数列:

[1, 3, 9, 37, 53, 111, 159, 333, 477, 1061, 1961, 3183, 5883, 9549, 17649, 39257, 56233, 117771, 168699, 353313, 506097, 2080621, 6241863, 18725589]

約数ペア:

[(1, 18725589), (3, 6241863), (9, 2080621), (37, 506097), (53, 353313), (111, 168699), (159, 117771), (333, 56233), (477, 39257), (1061, 17649), (1961, 9549), (3183, 5883)]