21799856

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{337}}^1$

素因数の和:669

約数の個数: 40

約数和(自身を含む): 45767904

約数和(自身を除く): 23968048

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 311, 337, 622, 674, 1244, 1348, 2488, 2696, 4043, 4381, 4976, 5392, 8086, 8762, 16172, 17524, 32344, 35048, 64688, 70096, 104807, 209614, 419228, 838456, 1362491, 1676912, 2724982, 5449964, 10899928, 21799856]

約数ペア:

[(1, 21799856), (2, 10899928), (4, 5449964), (8, 2724982), (13, 1676912), (16, 1362491), (26, 838456), (52, 419228), (104, 209614), (208, 104807), (311, 70096), (337, 64688), (622, 35048), (674, 32344), (1244, 17524), (1348, 16172), (2488, 8762), (2696, 8086), (4043, 5392), (4381, 4976)]