21858284

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{227}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 46475520

約数和(自身を除く): 24617236

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 181, 227, 266, 362, 454, 532, 724, 908, 1267, 1589, 2534, 3178, 3439, 4313, 5068, 6356, 6878, 8626, 13756, 17252, 24073, 30191, 41087, 48146, 60382, 82174, 96292, 120764, 164348, 287609, 575218, 780653, 1150436, 1561306, 3122612, 5464571, 10929142, 21858284]

約数ペア:

[(1, 21858284), (2, 10929142), (4, 5464571), (7, 3122612), (14, 1561306), (19, 1150436), (28, 780653), (38, 575218), (76, 287609), (133, 164348), (181, 120764), (227, 96292), (266, 82174), (362, 60382), (454, 48146), (532, 41087), (724, 30191), (908, 24073), (1267, 17252), (1589, 13756), (2534, 8626), (3178, 6878), (3439, 6356), (4313, 5068)]