251136981

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{4339}}^1$

素因数の和:4513

約数の個数: 24

約数和(自身を含む): 372372000

約数和(自身を除く): 121235019

約数列:

[1, 3, 9, 59, 109, 177, 327, 531, 981, 4339, 6431, 13017, 19293, 39051, 57879, 256001, 472951, 768003, 1418853, 2304009, 4256559, 27904109, 83712327, 251136981]

約数ペア:

[(1, 251136981), (3, 83712327), (9, 27904109), (59, 4256559), (109, 2304009), (177, 1418853), (327, 768003), (531, 472951), (981, 256001), (4339, 57879), (6431, 39051), (13017, 19293)]