30491721

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1259}}^1$

素因数の和:1307

約数の個数: 40

約数和(自身を含む): 51226560

約数和(自身を除く): 20734839

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 81, 117, 207, 299, 351, 621, 897, 1053, 1259, 1863, 2691, 3777, 8073, 11331, 16367, 24219, 28957, 33993, 49101, 86871, 101979, 147303, 260613, 376441, 441909, 781839, 1129323, 1325727, 2345517, 3387969, 10163907, 30491721]

約数ペア:

[(1, 30491721), (3, 10163907), (9, 3387969), (13, 2345517), (23, 1325727), (27, 1129323), (39, 781839), (69, 441909), (81, 376441), (117, 260613), (207, 147303), (299, 101979), (351, 86871), (621, 49101), (897, 33993), (1053, 28957), (1259, 24219), (1863, 16367), (2691, 11331), (3777, 8073)]