21181908

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{4337}}^1$

素因数の和:4392

約数の個数: 48

約数和(自身を含む): 55387584

約数和(自身を除く): 34205676

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 37, 44, 66, 74, 111, 132, 148, 222, 407, 444, 814, 1221, 1628, 2442, 4337, 4884, 8674, 13011, 17348, 26022, 47707, 52044, 95414, 143121, 160469, 190828, 286242, 320938, 481407, 572484, 641876, 962814, 1765159, 1925628, 3530318, 5295477, 7060636, 10590954, 21181908]

約数ペア:

[(1, 21181908), (2, 10590954), (3, 7060636), (4, 5295477), (6, 3530318), (11, 1925628), (12, 1765159), (22, 962814), (33, 641876), (37, 572484), (44, 481407), (66, 320938), (74, 286242), (111, 190828), (132, 160469), (148, 143121), (222, 95414), (407, 52044), (444, 47707), (814, 26022), (1221, 17348), (1628, 13011), (2442, 8674), (4337, 4884)]