16538823

素因数分解:

$3^6\times 7^2\times {\mathrm{463}}^1$

素因数の和:495

約数の個数: 42

約数和(自身を含む): 28907664

約数和(自身を除く): 12368841

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 463, 567, 729, 1323, 1389, 1701, 3241, 3969, 4167, 5103, 9723, 11907, 12501, 22687, 29169, 35721, 37503, 68061, 87507, 112509, 204183, 262521, 337527, 612549, 787563, 1837647, 2362689, 5512941, 16538823]

約数ペア:

[(1, 16538823), (3, 5512941), (7, 2362689), (9, 1837647), (21, 787563), (27, 612549), (49, 337527), (63, 262521), (81, 204183), (147, 112509), (189, 87507), (243, 68061), (441, 37503), (463, 35721), (567, 29169), (729, 22687), (1323, 12501), (1389, 11907), (1701, 9723), (3241, 5103), (3969, 4167)]