208290789

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{659}}^1$

素因数の和:874

約数の個数: 48

約数和(自身を含む): 358300800

約数和(自身を除く): 150010011

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 173, 203, 261, 519, 609, 659, 1211, 1557, 1827, 1977, 3633, 4613, 5017, 5931, 10899, 13839, 15051, 19111, 35119, 41517, 45153, 57333, 105357, 114007, 133777, 171999, 316071, 342021, 401331, 798049, 1026063, 1203993, 2394147, 3306203, 7182441, 9918609, 23143421, 29755827, 69430263, 208290789]

約数ペア:

[(1, 208290789), (3, 69430263), (7, 29755827), (9, 23143421), (21, 9918609), (29, 7182441), (63, 3306203), (87, 2394147), (173, 1203993), (203, 1026063), (261, 798049), (519, 401331), (609, 342021), (659, 316071), (1211, 171999), (1557, 133777), (1827, 114007), (1977, 105357), (3633, 57333), (4613, 45153), (5017, 41517), (5931, 35119), (10899, 19111), (13839, 15051)]