261387621

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{641}}^1\times {\mathrm{1373}}^1$

素因数の和:2034

約数の個数: 32

約数和(自身を含む): 423411840

約数和(自身を除く): 162024219

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 641, 1373, 1923, 4119, 5769, 7051, 12357, 15103, 17307, 21153, 37071, 45309, 63459, 135927, 190377, 407781, 880093, 2640279, 7920837, 9681023, 23762511, 29043069, 87129207, 261387621]

約数ペア:

[(1, 261387621), (3, 87129207), (9, 29043069), (11, 23762511), (27, 9681023), (33, 7920837), (99, 2640279), (297, 880093), (641, 407781), (1373, 190377), (1923, 135927), (4119, 63459), (5769, 45309), (7051, 37071), (12357, 21153), (15103, 17307)]