19938128

素因数分解:

$2^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2657}}^1$

素因数の和:2739

約数の個数: 40

約数和(自身を含む): 44824512

約数和(自身を除く): 24886384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 67, 112, 134, 268, 469, 536, 938, 1072, 1876, 2657, 3752, 5314, 7504, 10628, 18599, 21256, 37198, 42512, 74396, 148792, 178019, 297584, 356038, 712076, 1246133, 1424152, 2492266, 2848304, 4984532, 9969064, 19938128]

約数ペア:

[(1, 19938128), (2, 9969064), (4, 4984532), (7, 2848304), (8, 2492266), (14, 1424152), (16, 1246133), (28, 712076), (56, 356038), (67, 297584), (112, 178019), (134, 148792), (268, 74396), (469, 42512), (536, 37198), (938, 21256), (1072, 18599), (1876, 10628), (2657, 7504), (3752, 5314)]