261619353

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{23311}}^1$

素因数の和:23389

約数の個数: 24

約数和(自身を含む): 400033920

約数和(自身を除く): 138414567

約数列:

[1, 3, 9, 29, 43, 87, 129, 261, 387, 1247, 3741, 11223, 23311, 69933, 209799, 676019, 1002373, 2028057, 3007119, 6084171, 9021357, 29068817, 87206451, 261619353]

約数ペア:

[(1, 261619353), (3, 87206451), (9, 29068817), (29, 9021357), (43, 6084171), (87, 3007119), (129, 2028057), (261, 1002373), (387, 676019), (1247, 209799), (3741, 69933), (11223, 23311)]