18386319

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{227}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 31190400

約数和(自身を除く): 12804081

約数列:

[1, 3, 7, 19, 21, 29, 49, 57, 87, 133, 147, 203, 227, 399, 551, 609, 681, 931, 1421, 1589, 1653, 2793, 3857, 4263, 4313, 4767, 6583, 11123, 11571, 12939, 19749, 26999, 30191, 33369, 46081, 80997, 90573, 125077, 138243, 211337, 322567, 375231, 634011, 875539, 967701, 2626617, 6128773, 18386319]

約数ペア:

[(1, 18386319), (3, 6128773), (7, 2626617), (19, 967701), (21, 875539), (29, 634011), (49, 375231), (57, 322567), (87, 211337), (133, 138243), (147, 125077), (203, 90573), (227, 80997), (399, 46081), (551, 33369), (609, 30191), (681, 26999), (931, 19749), (1421, 12939), (1589, 11571), (1653, 11123), (2793, 6583), (3857, 4767), (4263, 4313)]