261605281

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53161}}^1$

素因数の和:53224

約数の個数: 16

約数和(自身を含む): 323224960

約数和(自身を除く): 61619679

約数列:

[1, 7, 19, 37, 133, 259, 703, 4921, 53161, 372127, 1010059, 1966957, 7070413, 13768699, 37372183, 261605281]

約数ペア:

[(1, 261605281), (7, 37372183), (19, 13768699), (37, 7070413), (133, 1966957), (259, 1010059), (703, 372127), (4921, 53161)]